drm/amd/powerplay: Add Vega10 Powertune Table v3 support.

Handle the latest powerplay table format; includes Boost
State support.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewws-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>