Merge branch 'pci/misc'

- Drop of_match_ptr() to avoid unused variables when CONFIG_OF is unset
  (Bjorn Helgaas)

- Fix ARM pci_remap_iospace() when CONFIG_MMU unset to avoid build errors
  (Pali Rohár)

* pci/misc:
  PCI/ACPI: Update link to PCI firmware specification
  PCI: Drop of_match_ptr() to avoid unused variables

diff --cc drivers/pci/controller/dwc/pci-keystone.c
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-armada8k.c
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-spear13xx.c
Simple merge