By using the information provided by PMFW when available.

V2: put those structures shared around SMU V11 ASICs in
    smu_v11_0.h
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>