drm/amd/pm: add callback get_dpm_ultimate_freq for yellow carp

Add callback function to get the hard frequency range of a clock domain
for yellow carp.

Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>