Merge branch 'pci/boot-display'

- Add pci_is_display() to check for "Display" base class and use it in
  ALSA hda, vfio, vga_switcheroo, vt-d (Mario Limonciello)

* pci/boot-display:
  ALSA: hda: Use pci_is_display()
  iommu/vt-d: Use pci_is_display()
  vga_switcheroo: Use pci_is_display()
  vfio/pci: Use pci_is_display()
  PCI: Add pci_is_display() to check if device is a display controller