drm/amd/pp: Fix build warning in vegam

warning: missing braces around initializer [-Wmissing-braces]
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -320,7 +320,7 @@ int atomctrl_get_memory_pll_dividers_ai(struct pp_hwmgr *hwmgr,
 					pp_atomctrl_memory_clock_param_ai *mpll_param)
 {
 	struct amdgpu_device *adev = hwmgr->adev;
-	COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_3 mpll_parameters = {0};
+	COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_3 mpll_parameters = {{0}, 0, 0};
 	int result;
 
 	mpll_parameters.ulClock.ulClock = cpu_to_le32(clock_value);

drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c

@@ -1366,10 +1366,12 @@ static int vegam_program_memory_timing_parameters(struct pp_hwmgr *hwmgr)
 {
 	struct smu7_hwmgr *hw_data = (struct smu7_hwmgr *)(hwmgr->backend);
 	struct vegam_smumgr *smu_data = (struct vegam_smumgr *)(hwmgr->smu_backend);
-	struct SMU75_Discrete_MCArbDramTimingTable arb_regs = {0};
+	struct SMU75_Discrete_MCArbDramTimingTable arb_regs;
 	uint32_t i, j;
 	int result = 0;
 
+	memset(&arb_regs, 0, sizeof(SMU75_Discrete_MCArbDramTimingTable));
+
 	for (i = 0; i < hw_data->dpm_table.sclk_table.count; i++) {
 		for (j = 0; j < hw_data->dpm_table.mclk_table.count; j++) {
 			result = vegam_populate_memory_timing_parameters(hwmgr,