Updated cmake_hexagon and all the associated files that use it

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

src/platforms/qurt/stubs/stubs_posix.c

@@ -148,3 +148,7 @@ int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
 	return -1;
 }
 
+int fsync(int fd)
+{
+	return -1;
+}