drm/amd/pm: add power save mode workload for smu 13.0.10

add power save mode workload for smu 13.0.10, so that in compute mode,
pmfw will add margin since some applications requres higher margin.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>