The information has moved to different tables, notably
smu_info for core refclk and umc_info for mem refclk.
Acked-by: NChunming Zhou <david1.zhou@amd.com>
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>