sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api

Creation is done in this file, move destruction to be at the same place.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index dabb00a..71b266c 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -17,6 +17,8 @@ struct tcf_walker {
 int register_tcf_proto_ops(struct tcf_proto_ops *ops);
 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
 
+void tcf_destroy_chain(struct tcf_proto __rcu **fl);
+
 static inline unsigned long
 __cls_set_class(unsigned long *clp, unsigned long cl)
 {