drm/amdgpu/sdma4: add clockgating support for vega12

Same as vega10 for now.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
This commit is contained in:
Alex Deucher 2017-09-01 16:50:28 -04:00
commit 900bad3fe9