linux: Update version from 4.13.5 to 4.13.6

Announcement and change-log are available online [1][2]:

> Documentation/filesystems/overlayfs.txt                            |    5
> Makefile                                                           |    2
> arch/arm64/boot/dts/marvell/armada-ap806.dtsi                      |    4
> arch/arm64/kernel/armv8_deprecated.c                               |    2
> arch/arm64/kernel/cpufeature.c                                     |    2
> arch/powerpc/kernel/dt_cpu_ftrs.c                                  |    4
> arch/powerpc/kernel/exceptions-64s.S                               |   24 ++
> arch/powerpc/kernel/signal_64.c                                    |   13 +
> arch/powerpc/kvm/book3s_xive.c                                     |    5
> arch/powerpc/kvm/book3s_xive.h                                     |    1
> arch/powerpc/platforms/powernv/setup.c                             |   10
> arch/x86/include/asm/kvm_para.h                                    |    4
> arch/x86/kernel/kvm.c                                              |   14 -
> arch/x86/kvm/mmu.c                                                 |    2
> arch/x86/net/bpf_jit_comp.c                                        |    4
> block/bsg-lib.c                                                    |   27 +-
> drivers/auxdisplay/charlcd.c                                       |   11 -
> drivers/auxdisplay/panel.c                                         |   11 -
> drivers/base/arch_topology.c                                       |   14 -
> drivers/base/platform.c                                            |    3
> drivers/clk/samsung/clk-exynos4.c                                  |   15 +
> drivers/gpu/drm/i915/intel_audio.c                                 |    5
> drivers/gpu/drm/i915/intel_bios.c                                  |    7
> drivers/gpu/drm/i915/intel_modes.c                                 |   17 +
> drivers/hid/hid-rmi.c                                              |   13 -
> drivers/hid/i2c-hid/i2c-hid.c                                      |    3
> drivers/hid/wacom_sys.c                                            |    7
> drivers/hid/wacom_wac.c                                            |  110 ++++++++--
> drivers/hv/channel_mgmt.c                                          |    4
> drivers/hv/hv_fcopy.c                                              |    4
> drivers/hwtracing/intel_th/pci.c                                   |    5
> drivers/hwtracing/stm/core.c                                       |    2
> drivers/iio/adc/ad7793.c                                           |    4
> drivers/iio/adc/ad_sigma_delta.c                                   |   28 ++
> drivers/iio/adc/mcp320x.c                                          |   25 +-
> drivers/iio/adc/stm32-adc.c                                        |    2
> drivers/iio/adc/twl4030-madc.c                                     |   10
> drivers/iio/industrialio-core.c                                    |    4
> drivers/iio/pressure/bmp280-core.c                                 |    2
> drivers/iio/trigger/stm32-timer-trigger.c                          |    4
> drivers/isdn/i4l/isdn_ppp.c                                        |   37 ++-
> drivers/md/dm-core.h                                               |    1
> drivers/md/dm-crypt.c                                              |    5
> drivers/md/dm-ioctl.c                                              |   37 ++-
> drivers/md/dm.c                                                    |   10
> drivers/mmc/core/mmc.c                                             |   36 +--
> drivers/net/bonding/bond_main.c                                    |   17 -
> drivers/net/bonding/bond_options.c                                 |    3
> drivers/net/dsa/mv88e6xxx/chip.c                                   |    6
> drivers/net/ethernet/ibm/emac/mal.c                                |    3
> drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c              |    3
> drivers/net/ethernet/mellanox/mlxsw/spectrum.c                     |   38 ++-
> drivers/net/ethernet/qualcomm/emac/emac-mac.c                      |    3
> drivers/net/ethernet/realtek/8139too.c                             |    5
> drivers/net/ethernet/rocker/rocker_tlv.h                           |   48 ++--
> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c              |    1
> drivers/net/phy/xilinx_gmii2rgmii.c                                |    2
> drivers/net/tun.c                                                  |    8
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c        |   37 +--
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h      |    5
> drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c                  |   10
> drivers/nvme/host/pci.c                                            |   14 -
> drivers/scsi/scsi_scan.c                                           |    3
> drivers/scsi/sd.c                                                  |   35 ++-
> drivers/staging/iio/adc/ad7192.c                                   |    4
> drivers/staging/media/imx/imx-media-of.c                           |    2
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c |    6
> drivers/usb/class/cdc-wdm.c                                        |    4
> drivers/usb/core/config.c                                          |   16 +
> drivers/usb/core/devio.c                                           |   11 -
> drivers/usb/core/hub.c                                             |    2
> drivers/usb/core/message.c                                         |    4
> drivers/usb/dwc3/ep0.c                                             |    7
> drivers/usb/gadget/function/f_mass_storage.c                       |   27 --
> drivers/usb/gadget/function/f_mass_storage.h                       |   14 -
> drivers/usb/gadget/legacy/inode.c                                  |   46 +++-
> drivers/usb/gadget/legacy/mass_storage.c                           |   26 --
> drivers/usb/gadget/udc/atmel_usba_udc.c                            |    4
> drivers/usb/gadget/udc/core.c                                      |    3
> drivers/usb/gadget/udc/dummy_hcd.c                                 |   56 ++++-
> drivers/usb/gadget/udc/renesas_usb3.c                              |   19 +
> drivers/usb/host/pci-quirks.c                                      |   10
> drivers/usb/host/xhci-hub.c                                        |   14 -
> drivers/usb/host/xhci-pci.c                                        |   12 -
> drivers/usb/host/xhci-plat.c                                       |   16 -
> drivers/usb/host/xhci.c                                            |    3
> drivers/usb/host/xhci.h                                            |   10
> drivers/usb/renesas_usbhs/fifo.c                                   |   21 +
> drivers/usb/storage/transport.c                                    |   14 +
> drivers/usb/storage/uas-detect.h                                   |   15 -
> drivers/usb/storage/uas.c                                          |   10
> drivers/usb/storage/unusual_devs.h                                 |    7
> drivers/uwb/hwa-rc.c                                               |    2
> drivers/uwb/uwbd.c                                                 |   12 -
> fs/btrfs/ctree.h                                                   |    2
> fs/btrfs/extent_io.c                                               |    2
> fs/overlayfs/copy_up.c                                             |    6
> fs/overlayfs/dir.c                                                 |   20 -
> fs/overlayfs/namei.c                                               |    1
> fs/overlayfs/overlayfs.h                                           |    1
> fs/overlayfs/ovl_entry.h                                           |    3
> fs/overlayfs/readdir.c                                             |    6
> fs/overlayfs/super.c                                               |   27 +-
> fs/overlayfs/util.c                                                |   24 ++
> fs/userfaultfd.c                                                   |   66 +++++-
> fs/xattr.c                                                         |    2
> include/asm-generic/percpu.h                                       |   24 ++
> include/linux/iio/adc/ad_sigma_delta.h                             |    3
> include/linux/mmu_notifier.h                                       |    5
> include/linux/trace_events.h                                       |    1
> include/net/netlink.h                                              |   73 +++++-
> include/net/protocol.h                                             |    4
> include/net/route.h                                                |    4
> include/net/sctp/ulpevent.h                                        |    6
> include/net/tcp.h                                                  |    2
> include/net/udp.h                                                  |    2
> include/scsi/scsi_device.h                                         |    1
> include/scsi/scsi_devinfo.h                                        |    1
> include/uapi/linux/bpf.h                                           |    2
> include/uapi/linux/dm-ioctl.h                                      |    4
> include/uapi/linux/usb/ch9.h                                       |    1
> kernel/bpf/core.c                                                  |    2
> kernel/bpf/syscall.c                                               |    6
> kernel/bpf/verifier.c                                              |    3
> kernel/cgroup/cgroup.c                                             |    8
> kernel/events/core.c                                               |    3
> kernel/trace/ftrace.c                                              |   14 -
> lib/ratelimit.c                                                    |    4
> mm/ksm.c                                                           |    5
> mm/madvise.c                                                       |   12 -
> mm/oom_kill.c                                                      |   16 +
> mm/rodata_test.c                                                   |    2
> mm/swap.c                                                          |    4
> mm/swap_state.c                                                    |   11 +
> net/core/dev.c                                                     |    1
> net/core/filter.c                                                  |   12 -
> net/core/gen_estimator.c                                           |    4
> net/core/rtnetlink.c                                               |    3
> net/core/sock.c                                                    |    7
> net/dsa/slave.c                                                    |   28 +-
> net/ipv4/ip_input.c                                                |   25 +-
> net/ipv4/ip_vti.c                                                  |    3
> net/ipv4/route.c                                                   |   46 ++--
> net/ipv4/tcp_ipv4.c                                                |    9
> net/ipv4/tcp_output.c                                              |   33 ++-
> net/ipv4/udp.c                                                     |   36 ++-
> net/ipv6/addrconf.c                                                |    5
> net/ipv6/ip6_gre.c                                                 |   22 +-
> net/ipv6/ip6_tunnel.c                                              |    8
> net/ipv6/ip6_vti.c                                                 |    3
> net/ipv6/udp.c                                                     |    1
> net/l2tp/l2tp_core.c                                               |   10
> net/l2tp/l2tp_core.h                                               |    5
> net/l2tp/l2tp_eth.c                                                |   51 ----
> net/netlink/af_netlink.c                                           |    7
> net/openvswitch/datapath.c                                         |    3
> net/packet/af_packet.c                                             |   28 +-
> net/sched/act_api.c                                                |    6
> net/sched/cls_matchall.c                                           |    1
> net/sched/sch_generic.c                                            |    1
> net/tipc/msg.c                                                     |    2
> net/wireless/nl80211.c                                             |   14 +
> security/smack/smack_lsm.c                                         |   55 ++---
> sound/core/compress_offload.c                                      |    3
> sound/pci/echoaudio/echoaudio.c                                    |    6
> sound/usb/card.c                                                   |   20 +
> sound/usb/usx2y/usb_stream.c                                       |    6
> tools/testing/selftests/bpf/test_verifier.c                        |   16 +
> 168 files changed, 1389 insertions(+), 671 deletions(-)

[1] https://lkml.org/lkml/2017/10/12/160
[2] https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6