Merge branch 'pci/controller/dwc-ultrarisc'

- Add 'core', 'dbi', and 'aux' clocks to DT binding and manage them in the
  driver (Jia Wang)

- Use module_platform_driver() since this may be built as a module, though
  not removable because IRQs can't be safely disposed (Jia Wang)

* pci/controller/dwc-ultrarisc:
  PCI: ultrarisc: Use module_platform_driver()
  PCI: ultrarisc: Get and enable DP1000 PCIe controller clocks
  dt-bindings: PCI: ultrarisc: Add required DP1000 PCIe clocks