drm/amd/powerplay/vega20: correct the hwmon interface ppt limit output

The ppt limit read out by hwmon interface is always 0.
Correct this hwmon interface output.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 files changed