Added #include <string.h> for memset()/memcpy().

src/arch/c16x/include/arch/cc.h

@@ -1,6 +1,9 @@
 #ifndef __CC_H__
 #define __CC_H__
 
+/* memset(), memcpy() */
+#include <string.h>
+
 typedef unsigned   char    u8_t;
 typedef signed     char    s8_t;
 typedef unsigned   short   u16_t;
@@ -16,5 +19,4 @@ typedef u32_t mem_ptr_t;
 #define PACK_STRUCT_END
 #define PACK_STRUCT_FIELD(x) x
 
-
 #endif /* __CC_H__ */