[Intel-gfx] drm/i915 fixes that failed to backport to v4.15

[Jani Nikula]

All, the following fixes selected based on the Fixes: tag failed to
backport to drm-next heading to v4.15.

8cf80a2e4b31 ("drm/i915/gvt: Rename reserved ring buffer")

This one I think shouldn't have included a Fixes: line in the first
place. While technically a rename can be a fix, I consider Fixes: to
indicate things that have a functional significance to the end user.

f2880e04f3a5 ("drm/i915/gvt: Move request alloc to dispatch_workload path only")
0cfecb7c4b9b ("Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk"")

If these are needed in v4.15, please provide backports based on the
drm-intel-next-fixes branch.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center