gluon-radv-filterd: Initialize router->originator after alloc

The memory returned after malloc is not initialized. It must be initialized
before it is accessed in update_tqs and compared against 00:00:00:00:00:00.
Otherwise the TQ retrievel could fail because the originator address is
never updated.

Signed-off-by: Sven Eckelmann <sven@narfation.org>

package/gluon-radv-filterd/src/gluon-radv-filterd.c

@@ -331,6 +331,7 @@ static struct router *router_add(const struct ether_addr *mac) {
 	G.routers = router;
 	router->eol.tv_sec = 0;
 	router->eol.tv_nsec = 0;
+	memset(&router->originator, 0, sizeof(router->originator));
 
 	return router;
 }