drm/amd/pm: add SCPM support in smu v13_0_7

port the SCPM change from smu_v13_0_0 to smu_v13_0_7

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