Merge branch 'remotes/lorenzo/pci/cadence'

  - Fix Cadence PHY handling during probe (Alan Douglas)

  - Signal Cadence Endpoint interrupts via AXI region 0 instead of last
    region (Alan Douglas)

  - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
    Douglas)

* remotes/lorenzo/pci/cadence:
  PCI: cadence: Write MSI data with 32bits
  PCI: cadence: Use AXI region 0 to signal interrupts from EP
  PCI: cadence: Correct probe behaviour when failing to get PHY