systemlib: Warning fixes

src/modules/systemlib/rc_check.c

@@ -42,6 +42,7 @@
 #include <stdio.h>
 #include <fcntl.h>
 
+#include <systemlib/err.h>
 #include <systemlib/rc_check.h>
 #include <systemlib/param/param.h>
 #include <mavlink/mavlink_log.h>

src/modules/systemlib/systemlib.c

@@ -64,6 +64,9 @@ systemreset(bool to_bootloader)
 		*(uint32_t *)0x40002850 = 0xb007b007;
 	}
 	up_systemreset();
+
+	/* lock up here */
+	while(true);
 }
 
 static void kill_task(FAR struct tcb_s *tcb, FAR void *arg);