Merge tag 'gpu-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

GPU pull request

Includes:
- [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash
- [PATCH v2 0/4] Misc ati-vga patches
- [PATCH v2 0/5] virtio-gpu: add blob migration support

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# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
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* tag 'gpu-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  Revert "virtio-gpu: block migration of VMs with blob=true"
  virtio-gpu: add virtio-gpu/blob vmstate subsection
  virtio-gpu: move scanout restoration to post_load
  virtio-gpu: factor out restore mapping
  virtio-gpu: block migration of VMs with blob=true
  ati-vga: Implement fallback for pixman routines
  ati-vga: Add 30 bit palette access register
  ati-vga: Support unaligned access to GPIO DDC registers
  ati-vga: Fix aperture sizes
  virtio-gpu-rutabaga: Add empty interface to fix arm64 crash

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>