修改MC124的最低硬件支持的母线电压为40v

Signed-off-by: kevin <huhui@sharkgulf.com>

Applications/bsp/gd32/bsp.h

@@ -49,7 +49,7 @@
 #elif defined (CONFIG_BOARD_MC124)
 #define CONFIG_CURRENT_SENSOR_CEOF 0.313F
 #define CONFIG_BOARD_MAX_VOLTAGE 90.0f
-#define CONFIG_BOARD_MIN_VOLTAGE 50.0f
+#define CONFIG_BOARD_MIN_VOLTAGE 40.0f
 #include "bsp/gd32/board_mc105_v3.h"
 #define CONFIG_BOARD_MCXXX
 #define CONFIG_BOARD_NAME "MCXXX"