Adjusted pin assignment for the BLE Nano board.

Author: Cheong2K

libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_RBLAB_BLENANO/PinNames.h

@@ -139,17 +139,16 @@ typedef enum {
     I2C_SCL1 = p15, 
 */
 
-    D0  = p9,
-    D1  = p11,
-    D2  = p8,
-    D3  = p10,
-//    D4  = p,
-    D5  = p7,
+    D0  = p11,
+    D1  = p9,
+    D2  = p10,
+    D3  = p8,
+    D4  = p28,
+    D5  = p29,
     D6  = p15,
-    D7  = p29,
-    
+    D7  = p7,
+/*    
     D8  = p28,
-/*
     D9  = p18,
     D10 = p14,
     D11 = p12,