drm/amd/pm: Use metrics 1_6

Use metrics 1_6 to report activities per partition

v2: Use separate per instance for different platforms, shared
vcn handled by other fix

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