pci-v3.17-fixes-3

  Enumeration
    - Revert "PCI: Don't scan random busses in pci_scan_bridge()" (Bjorn Helgaas)
    - Revert "PCI: Make sure bus number resources stay within their parents bounds" (Bjorn Helgaas)

  PCI device hotplug
    - Fix pciehp pcie_wait_cmd() timeout (Yinghai Lu)