[TCP]: Replace struct net on tcp_iter_state with seq_net_private.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7b41bb9..f5b61e0 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1333,7 +1333,7 @@
 };
 
 struct tcp_iter_state {
-	struct net              *net;
+	struct seq_net_private	p;
 	sa_family_t		family;
 	enum tcp_seq_states	state;
 	struct sock		*syn_wait_sk;