DC already handles this correctly since amdgpu minor version 31. Bump
the minor version again so that xf86-video-amdgpu can take advantage of
this working without DC as well now.
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>