drm/amd/pm: Add schema v1.1 for parition metrics

drm/amd/pm: Add schema v1.1 for parition metrics

Use a schema similar to gpu metrics v1.9 for partition metrics also. It
will have field type encoded followed by the field value(s). The
attribute ids used will be shared with gpu metrics. The structure
definition is only to distinguish between gpu metrics and partition
metrics though both gpu metrics v1.9 and partition metrics v1.1 follow
the same definition.

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