[11U68]fix P0_11 to use GPIO

Fork of mbed-src by mbed official

Revision:
174:8bb9f3a33240
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC11U6X/cmsis.h	Tue Apr 29 11:15:07 2014 +0100
@@ -0,0 +1,13 @@
+/* mbed Microcontroller Library - CMSIS
+ * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
+ * 
+ * A generic CMSIS include header, pulling in LPC8xx specifics
+ */
+
+#ifndef MBED_CMSIS_H
+#define MBED_CMSIS_H
+
+#include "LPC11U6x.h"
+#include "cmsis_nvic.h"
+
+#endif