Merge branch 'pci/wei-resource-cleanups' into next

* pci/wei-resource-cleanups:
  PCI: Align bridge I/O windows as required by downstream devices & bridges
  PCI: Fix types in pbus_size_io()
  PCI: Add comments for pbus_size_mem() parameters
  PCI: Enumerate subordinate buses, not devices, in pci_bus_get_depth()