drm/powerplay: Fix Vega20 power reading again

For the 40.46 SMU release, they changed CurrSocketPower to
AverageSocketPower, but this was changed back in 40.47 so just check if
it's 40.46 and make the appropriate change

Tested with 40.45, 40.46 and 40.47 successfully
Signed-off-by: NKent Russell <kent.russell@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c

@@ -2101,10 +2101,11 @@ static int vega20_get_gpu_power(struct pp_hwmgr *hwmgr,
 	if (ret)
 		return ret;
 
-	if (hwmgr->smu_version < 0x282e00)
-		*query = metrics_table.CurrSocketPower << 8;
-	else
+	/* For the 40.46 release, they changed the value name */
+	if (hwmgr->smu_version == 0x282e00)
 		*query = metrics_table.AverageSocketPower << 8;
+	else
+		*query = metrics_table.CurrSocketPower << 8;
 
 	return ret;
 }

drivers/gpu/drm/amd/powerplay/vega20_ppt.c

@@ -2932,10 +2932,11 @@ static int vega20_get_gpu_power(struct smu_context *smu, uint32_t *value)
 	if (ret)
 		return ret;
 
-	if (smu_version < 0x282e00)
-		*value = metrics.CurrSocketPower << 8;
-	else
+	/* For the 40.46 release, they changed the value name */
+	if (smu_version == 0x282e00)
 		*value = metrics.AverageSocketPower << 8;
+	else
+		*value = metrics.CurrSocketPower << 8;
 
 	return 0;
 }