drm/amdgpu: RLC must be disabled after SMU when S3 on navi

SMU requires to interact with RLC when disable all features,
so RLC shouldn't be disabled ahead of SMU.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>