net/802/fddi.c: add MODULE_LICENSE

This patch adds the missing MODULE_LICENSE("GPL").
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/802/fddi.c

@@ -215,3 +215,5 @@ struct net_device *alloc_fddidev(int sizeof_priv)
 	return alloc_netdev(sizeof_priv, "fddi%d", fddi_setup);
 }
 EXPORT_SYMBOL(alloc_fddidev);
+
+MODULE_LICENSE("GPL");