[BT-6703-RT]add new relay active

config/board_bt6703_rt.h

@@ -266,6 +266,7 @@ typedef enum {
   XMONITOR(UPS_Failed_Monitor,                    UPS.Present) \
 
 #define RELAY_AC_PRESENT
+#define RELAY_DC_PRESENT
 #define RELAY_ALARM_AKB
 #define RELAY_CHARGE_AKB
 #define RELAY_OFF_AKB