Merge branch 'pci/controller/qcom'

- Describe endpoint BAR0 and BAR2 as 64-bit only and BAR1 and BAR3 as
  RESERVED (Manivannan Sadhasivam)

- Add optional dma-coherent DT property for Qualcomm SA8775P (Dmitry
  Baryshkov)

- Make DT iommu property required for SA8775P and prohibited for SDX55
  (Dmitry Baryshkov)

- Add DT iommu and DMA-related properties for Qualcomm SM8450 (Dmitry
  Baryshkov)

- Consolidate DMA vs non-DMA cases in DT (Dmitry Baryshkov)

- Add endpoint DT properties for SAR2130P and enable endpoint mode in
  driver (Dmitry Baryshkov)

* pci/controller/qcom:
  PCI: qcom-ep: Enable EP mode support for SAR2130P
  dt-bindings: PCI: qcom-ep: Add SAR2130P compatible
  dt-bindings: PCI: qcom-ep: Consolidate DMA vs non-DMA cases
  dt-bindings: PCI: qcom-ep: Enable DMA for SM8450
  dt-bindings: PCI: qcom-ep: Describe optional IOMMU
  dt-bindings: PCI: qcom-ep: Describe optional dma-coherent property
  PCI: qcom-ep: Mark BAR0/BAR2 as 64bit BARs and BAR1/BAR3 as RESERVED