qxl fix

[Gerd Hoffmann <kraxel@xxxxxxxxxx>]

  Hi,

Can you please cherry-pick 4fff19ae4275 ("drm/qxl: use ttm bo
priorities") from 5.13-rc1 into stable branches?  It is a clean
cherry-pick for 5.12 and 5.11.  Looking into 5.10-lts right now,
will eventually follow up with a backported patch.

thanks,
  Gerd