moved io and signal and IAR-GCC checks from driver files into contiki include file

cpu/msp430/msp430def.h

@@ -32,6 +32,30 @@
 #ifndef MSP430DEF_H
 #define MSP430DEF_H
 
+#if defined(__IAR_SYSTEMS_ICC__) || defined(__MSPGCC__)
+#include <msp430.h>
+#if __MSPGCC__
+#include <legacymsp430.h>
+#endif /* __MSPGCC__ */
+#else
+#include <io.h>
+#include <signal.h>
+#endif
+
+#ifdef __IAR_SYSTEMS_ICC__
+#include <intrinsics.h>
+#include <in430.h>
+#define dint() __disable_interrupt()
+#define eint() __enable_interrupt()
+#define __MSP430F1611__ 1
+#define __MSP430__ 1
+#define CC_CONF_INLINE
+#define BV(x) (1 << x)
+#else
+#define CC_CONF_INLINE inline
+#define MSP430_MEMCPY_WORKAROUND 1
+#endif
+
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
 #else