[STM32F4] Make device.h a common file

Author: Laurent MEUNIER

hal/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_B96B_F446VE/PinNames.h

@@ -185,6 +185,7 @@ typedef enum {
     LED2        = LED1,
     LED3        = PD_11,
     LED4        = PD_12,
+    LED_RED     = LED1,
     USER_BUTTON = PD_13,
     SERIAL_TX   = PC_10,
     SERIAL_RX   = PC_11,

hal/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_B96B_F446VE/device.h

@@ -144,6 +144,7 @@ typedef enum {
     LED2        = PD_13,
     LED3        = PD_14,
     LED4        = PD_15,
+    LED_RED     = LED1,
     USER_BUTTON = PA_0,
     SERIAL_TX   = PA_2,
     SERIAL_RX   = PA_3,

hal/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_DISCO_F401VC/PinNames.h

@@ -229,6 +229,7 @@ typedef enum {
     LED4        = PD_12,
     LED5        = PD_14,
     LED6        = PD_15,
+    LED_RED     = LED1,
     USER_BUTTON = PA_0,
     SERIAL_TX   = PA_2,	/* USART2 */
     SERIAL_RX   = PA_3,

hal/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_DISCO_F401VC/device.h

@@ -207,6 +207,7 @@ typedef enum {
     LED2        = PG_14, // Corresponds to LD4 on MB1075B
     LED3        = PG_13,
     LED4        = PG_14,
+    LED_RED     = LED2,
     USER_BUTTON = PA_0,
     SERIAL_TX   = PA_9,
     SERIAL_RX   = PA_10,

hal/targets/hal/TARGET_STM/TARGET_STM32F4/TARGET_DISCO_F407VG/PinNames.h

@@ -276,6 +276,7 @@ typedef enum {
     LED3        = PD_5,
     LED4        = PK_3,
     LED7        = PD_3,
+    LED_RED     = LED1,
     USER_BUTTON = PA_0,
     SERIAL_TX   = PB_10,
     SERIAL_RX   = PB_11,