drm/amd/display: fix gamma distortion on Vega

Added missing reg shift/masks to soc base

Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roman Li 2017-08-10 16:11:10 -04:00 • committed by Alex Deucher
commit f81483c4cc