drm/amd/powerplay: add one smc message for Vega10

This is used to fix performance drop caused by updated SMU FW.
Signed-off-by: NEric Huang <JinHuiEric.Huang@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/inc/vega10_ppsmc.h

@@ -131,7 +131,8 @@ typedef uint16_t PPSMC_Result;
 #define PPSMC_MSG_RunAcgInOpenLoop               0x5E
 #define PPSMC_MSG_InitializeAcg                  0x5F
 #define PPSMC_MSG_GetCurrPkgPwr                  0x61
-#define PPSMC_Message_Count                      0x62
+#define PPSMC_MSG_UpdatePkgPwrPidAlpha           0x68
+#define PPSMC_Message_Count                      0x69
 
 
 typedef int PPSMC_Msg;