nl802154: add module license and description

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 332b947..27eda9f 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -524,3 +524,6 @@
 }
 module_exit(ieee802154_nl_exit);
 
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ieee 802.15.4 configuration interface");
+