use define for led, button, spi and i2c

use define for led, button, spi and i2c

targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52840/TARGET_NRF52840_DONGLE/PinNames.h

@@ -160,18 +160,11 @@ typedef enum {
     p46 = P1_14,
     p47 = P1_15,
     
-    LED1    = p6,  /* On board Green */
-    LED2    = p8,  /* RGB Red        */
-    LED3    = p41, /* RGB Green      */
-    LED4    = p12, /* RGB Blue       */
-
-    BUTTON1 = p38,
-
     /* Available on castelled board edges */
-    RX_PIN_NUMBER  = p24,
-    TX_PIN_NUMBER  = p20,
-    CTS_PIN_NUMBER = p17,
-    RTS_PIN_NUMBER = p22,
+    RX_PIN_NUMBER  = P0_24,
+    TX_PIN_NUMBER  = P0_20,
+    CTS_PIN_NUMBER = P0_17,
+    RTS_PIN_NUMBER = P0_22,
 
     // mBed interface Pins
     CONSOLE_TX = TX_PIN_NUMBER,
@@ -189,20 +182,29 @@ typedef enum {
     STDIO_UART_CTS = CTS_PIN_NUMBER,
     STDIO_UART_RTS = RTS_PIN_NUMBER,
 
-    /* Available on castelled board edges */
-    SPI_PSELMOSI0 = p42,
-    SPI_PSELMISO0 = p45,
-    SPI_PSELSS0   = p2,
-    SPI_PSELSCK0  = p47,
-
-    /* Available on castelled board edges */
-    I2C_SDA0 = p9,
-    I2C_SCL0 = p10,
-
     // Not connected
     NC = (int)0xFFFFFFFF
 } PinName;
 
+
+#define LED1    P0_6  /* On board Green */
+#define LED2    P0_8  /* RGB Red        */
+#define LED3    P1_9  /* RGB Green      */
+#define LED4    P0_12 /* RGB Blue       */
+
+#define BUTTON1 P1_6
+
+/* Available on castelled board edges */
+#define SPI_PSELMOSI0   P1_10
+#define SPI_PSELMISO0   P1_13
+#define SPI_PSELSS0     P0_2
+#define SPI_PSELSCK0    P1_15
+
+/* Available on castelled board edges */
+#define I2C_SDA0    P0_9
+#define I2C_SCL0    P0_10
+
+
 typedef enum {
     PullNone = 0,
     PullDown = 1,