drm/amd/pm/powerplay/hwmgr: use bitwise or for bitmasks addition

For bit mask addition, it is recommended to use or operator "|" instead
of numerical addition as the former is quicker and cleaner. Change
suggested by orplus.cocci Coccinelle semantic patch.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Deepak R Varma <drv@mailo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c

@@ -4203,7 +4203,7 @@ static int smu7_freeze_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 
 	if ((0 == data->sclk_dpm_key_disabled) &&
 		(data->need_update_smu7_dpm_table &
-			(DPMTABLE_OD_UPDATE_SCLK + DPMTABLE_UPDATE_SCLK))) {
+			(DPMTABLE_OD_UPDATE_SCLK | DPMTABLE_UPDATE_SCLK))) {
 		PP_ASSERT_WITH_CODE(true == smum_is_dpm_running(hwmgr),
 				"Trying to freeze SCLK DPM when DPM is disabled",
 				);
@@ -4260,7 +4260,7 @@ static int smu7_populate_and_upload_sclk_mclk_dpm_levels(
 	}
 
 	if (data->need_update_smu7_dpm_table &
-			(DPMTABLE_OD_UPDATE_SCLK + DPMTABLE_UPDATE_SCLK)) {
+			(DPMTABLE_OD_UPDATE_SCLK | DPMTABLE_UPDATE_SCLK)) {
 		result = smum_populate_all_graphic_levels(hwmgr);
 		PP_ASSERT_WITH_CODE((0 == result),
 				"Failed to populate SCLK during PopulateNewDPMClocksStates Function!",
@@ -4268,7 +4268,7 @@ static int smu7_populate_and_upload_sclk_mclk_dpm_levels(
 	}
 
 	if (data->need_update_smu7_dpm_table &
-			(DPMTABLE_OD_UPDATE_MCLK + DPMTABLE_UPDATE_MCLK)) {
+			(DPMTABLE_OD_UPDATE_MCLK | DPMTABLE_UPDATE_MCLK)) {
 		/*populate MCLK dpm table to SMU7 */
 		result = smum_populate_all_memory_levels(hwmgr);
 		PP_ASSERT_WITH_CODE((0 == result),
@@ -4359,7 +4359,7 @@ static int smu7_unfreeze_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 
 	if ((0 == data->sclk_dpm_key_disabled) &&
 		(data->need_update_smu7_dpm_table &
-		(DPMTABLE_OD_UPDATE_SCLK + DPMTABLE_UPDATE_SCLK))) {
+		(DPMTABLE_OD_UPDATE_SCLK | DPMTABLE_UPDATE_SCLK))) {
 
 		PP_ASSERT_WITH_CODE(true == smum_is_dpm_running(hwmgr),
 				"Trying to Unfreeze SCLK DPM when DPM is disabled",