ARM: tegra: defconfig updates

Enable:
* SYSVIPC (needed for some apps, e.g. fakeroot).
* Elantech touchpad (touchpad on AC100).
* SCSI_MULTI_LUN (needed for some USB SD card readers).
* PCI, MSI, and Tegra's PCIe driver.
* USB XHCI; useful for testing PCIe.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/configs/tegra_defconfig

@@ -1,3 +1,4 @@
+CONFIG_SYSVIPC=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
@@ -26,8 +27,11 @@ CONFIG_ARCH_TEGRA=y
 CONFIG_ARCH_TEGRA_2x_SOC=y
 CONFIG_ARCH_TEGRA_3x_SOC=y
 CONFIG_ARCH_TEGRA_114_SOC=y
-CONFIG_TEGRA_PCI=y
 CONFIG_TEGRA_EMC_SCALING_ENABLE=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_TEGRA=y
+CONFIG_PCIEPORTBUS=y
 CONFIG_SMP=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
@@ -91,6 +95,7 @@ CONFIG_ISL29003=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_MULTI_LUN=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
@@ -105,6 +110,7 @@ CONFIG_RT2800USB=m
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 CONFIG_KEYBOARD_TEGRA=y
+CONFIG_MOUSE_PS2_ELANTECH=y
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_MPU3050=y
 # CONFIG_LEGACY_PTYS is not set
@@ -177,6 +183,7 @@ CONFIG_SND_SOC_TEGRA_WM8903=y
 CONFIG_SND_SOC_TEGRA_TRIMSLICE=y
 CONFIG_SND_SOC_TEGRA_ALC5632=y
 CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_TEGRA=y
 CONFIG_USB_ACM=y