Merge branch 'pci/resource' into next

Merge branch 'pci/resource' into next

* pci/resource:
  PCI: Don't resize resources when realigning all devices in system
  PCI: Don't reassign resources that are already aligned
  PCI: Factor pci_reassigndev_resource_alignment()
  powerpc/powernv: Override pcibios_default_alignment() to force PCI devices to be page aligned
  PCI: Add pcibios_default_alignment() for arch-specific alignment control
  PCI: Fix calculation of bridge window's size and alignment
  PCI: Ignore requested alignment for IOV BARs
  PCI: Make PCI_ROM_ADDRESS_MASK a 32-bit constant