drm/amdgpu: enable SDMA power gating for rn

Enable SDMA PG flag during device ip early init.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed