Make: upgrade Babel makefiles

proto/babel/Makefile

-source=babel.c packets.c
-root-rel=../../
-dir-name=proto/babel
-
-include ../../Rules
+src := babel.c packets.c
+obj := $(src-o-files)
+$(all-daemon)
+$(cf-local)

proto/babel/babel.h

@@ -21,7 +21,7 @@
 #include "lib/lists.h"
 #include "lib/socket.h"
 #include "lib/string.h"
-#include "lib/timer.h"
+#include "sysdep/unix/timer.h"
 
 #ifndef IPV6
 #error "The Babel protocol only speaks IPv6"