drm/amd/pm: Fetch static metrics table

Fetch clock frequency table from static metrics table for
smu_v13_0_12

v2: Move PPTable definition, remove unnecessary checks for getting
static metrics table(Lijo)

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>