drm/amd/powerplay: new framework to honour DAL clock limits

This is needed for vega12 and vega20 which do not support legacy
powerstate. With this new framework, the DAL clocks limits can also
be honored on these asics.

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