Merge branch 'pci/controller/altera'

- Do not dispose of the parent IRQ mapping, which belongs to the parent
  interrupt controller (Mahesh Vaidya)

- Fix chained IRQ handler ordering issue and resource leaks on probe
  failure (Mahesh Vaidya)

* pci/controller/altera:
  PCI: altera: Fix resource leaks on probe failure
  PCI: altera: Do not dispose parent IRQ mapping