Merge branch 'pci/controller/microchip'

- Fix DED and SEC interrupt bit offsets so interrupt handlers work
  correctly (Daire McNamara)

- Make driver buildable as a module (Daire McNamara)

- Reorganize register #defines to align with hardware docs (Daire McNamara)

- Tweak register accessors to simplify callers (Daire McNamara)

- Refactor interrupt initialisation (Daire McNamara)

- Read FPGA MSI configuration parameters from hardware instead of
  hard-coding them (Daire McNamara)

- Re-partition code between probe() and init() (Daire McNamara)

* pci/controller/microchip:
  PCI: microchip: Re-partition code between probe() and init()
  PCI: microchip: Gather MSI information from hardware config registers
  PCI: microchip: Clean up initialisation of interrupts
  PCI: microchip: Enable event handlers to access bridge and control pointers
  PCI: microchip: Align register, offset, and mask names with HW docs
  PCI: microchip: Enable building driver as a module
  PCI: microchip: Correct the DED and SEC interrupt bit offsets