drm/amdgpu: use the AV1 defines for VCN 3.0

Switch from magic numbers to defines for AV1 clockgating.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-05-01 16:46:11 -04:00
commit d9ed8cb5aa