drm/amd/powerplay: correct the value retrieved through GPU_LOAD sensor interface

the unit of variable AverageGfxActivity defined in smu12 metrics
struct is centi, so the retrieved value should be divided by 100 before
return.
Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/renoir_ppt.c

@@ -492,7 +492,7 @@ static int renoir_get_current_activity_percent(struct smu_context *smu,
 
 	switch (sensor) {
 	case AMDGPU_PP_SENSOR_GPU_LOAD:
-		*value = metrics.AverageGfxActivity;
+		*value = metrics.AverageGfxActivity / 100;
 		break;
 	default:
 		pr_err("Invalid sensor for retrieving clock activity\n");