Make name mangling type consistent.

src/modules/muorb/adsp/px4muorb.cpp

@@ -48,11 +48,12 @@
 __BEGIN_DECLS
 extern int dspal_main(int argc, char *argv[]);
 extern struct shmem_info *shmem_info_p;
+__END_DECLS
 extern int get_shmem_lock(const char *caller_file_name, int caller_line_number);
 extern void release_shmem_lock(const char *caller_file_name,
 			       int caller_line_number);
 extern void init_shared_memory(void);
-__END_DECLS
+
 int px4muorb_orb_initialize()
 {
 	HAP_power_request(100, 100, 1000);