drm/amdgpu: Move out power up/down sdma out of smu

smu only expose interface to other ip blocks.
in order to reduce dependence between smu and other ip blocks

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 files changed