drm/amdgpu/virtual_dce: add dce6 support

disable the real dce hw if the asic supports dce.

Reviewed-By: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-09-29 23:36:12 -04:00
commit a1d37046d4