drm/radeon: enable mgcg on CIK

Now that the CP is no longer reset and cg is properly
disabled in when appropriate in the dpm code we can
now enable mgcg (medium grained clockgating).

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-08-14 18:58:43 -04:00
commit 773dc10a8a