Merge branch 'drm-next-4.18' of git://people.freedesktop.org/~agd5f/linux into drm...

Last feature request for 4.18.  Mostly vega20 support.
- Vega20 support
- clock and powergating for VCN
- misc bug fixes

Signed-off-by: Dave Airlie <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

diff --cc drivers/gpu/drm/amd/display/modules/color/color_gamma.c
Simple merge