Merge branch 'pci/controller/microchip'

- Set up the inbound address translation based on whether the platform
  allows coherent or non-coherent DMA (Daire McNamara)

- Update DT binding such that platforms are DMA-coherent by default and
  must specify 'dma-noncoherent' if needed (Conor Dooley)

* pci/controller/microchip:
  dt-bindings: PCI: microchip,pcie-host: Allow dma-noncoherent
  PCI: microchip: Set inbound address translation for coherent or non-coherent mode