[NUC472/M453] Set LED4 to LED1

No real LED4. Just for passing ATS.

Author: ccli8

targets/TARGET_NUVOTON/TARGET_M451/TARGET_NUMAKER_PFM_M453/PinNames.h

@@ -115,7 +115,7 @@ typedef enum {
     LED1 = PD_2,
     LED2 = PD_3,
     LED3 = PD_7,
-    LED4 = D0,  // No real LED. Just for passing ATS.
+    LED4 = LED1,    // No real LED. Just for passing ATS.
     LED_RED = LED2,
     LED_GREEN = LED3,
     LED_BLUE = LED1,

targets/TARGET_NUVOTON/TARGET_NUC472/TARGET_NUMAKER_PFM_NUC472/PinNames.h

@@ -118,7 +118,7 @@ typedef enum {
     LED1 = PD_9,
     LED2 = PA_4,
     LED3 = PD_8,
-    LED4 = D0,  // No real LED. Just for passing ATS.
+    LED4 = LED1,    // No real LED. Just for passing ATS.
     LED_RED = LED1,
     LED_GREEN = LED2,
     LED_BLUE = LED3,