drm/amd/pm: enable gfx ulv feature control for SMU 13.0.0

Fulfill the interface for gfx ulv control.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>