ieee802154: merge nl802154 and wpan-class in single module

There is no real need to have ieee802154 interfaces separate
into several small modules, as neither of them has it's own use.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index ca767bd..0fadd6b 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -643,7 +643,7 @@
 							ieee802154_dump_iface),
 };
 
-static int __init ieee802154_nl_init(void)
+int __init ieee802154_nl_init(void)
 {
 	int rc;
 	int i;
@@ -676,14 +676,9 @@
 	genl_unregister_family(&ieee802154_coordinator_family);
 	return rc;
 }
-module_init(ieee802154_nl_init);
 
-static void __exit ieee802154_nl_exit(void)
+void __exit ieee802154_nl_exit(void)
 {
 	genl_unregister_family(&ieee802154_coordinator_family);
 }
-module_exit(ieee802154_nl_exit);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("ieee 802.15.4 configuration interface");