Merge tag 'gvt-fixes-2017-11-28' of https://github.com/intel/gvt-linux into drm-intel-fixes

gvt-fixes-2017-11-28

- regression fix for sane request alloc (Fred)
- locking fix (Changbin)
- fix invalid addr mask (Xiong)
- compression regression fix (Weinan)
- fix default pipe enable for virtual display (Xiaolin)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>