drm/amd/pm/powerplay/smumgr: use bitwise or for 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/smumgr/iceland_smumgr.c

@@ -2165,7 +2165,7 @@ static int iceland_program_mem_timing_parameters(struct pp_hwmgr *hwmgr)
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
 	if (data->need_update_smu7_dpm_table &
-		(DPMTABLE_OD_UPDATE_SCLK + DPMTABLE_OD_UPDATE_MCLK))
+		(DPMTABLE_OD_UPDATE_SCLK | DPMTABLE_OD_UPDATE_MCLK))
 		return iceland_program_memory_timing_parameters(hwmgr);
 
 	return 0;

drivers/gpu/drm/amd/pm/powerplay/smumgr/tonga_smumgr.c

@@ -2554,7 +2554,7 @@ static int tonga_program_mem_timing_parameters(struct pp_hwmgr *hwmgr)
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
 	if (data->need_update_smu7_dpm_table &
-		(DPMTABLE_OD_UPDATE_SCLK + DPMTABLE_OD_UPDATE_MCLK))
+		(DPMTABLE_OD_UPDATE_SCLK | DPMTABLE_OD_UPDATE_MCLK))
 		return tonga_program_memory_timing_parameters(hwmgr);
 
 	return 0;