ipvs: ignore IP_VS_CONN_F_NOOUTPUT in backup server

	As IP_VS_CONN_F_NOOUTPUT is derived from the
forwarding method we should get it from conn_flags just
like we do it for IP_VS_CONN_F_FWD_MASK bits when binding
to real server.
Signed-off-by: NJulian Anastasov <ja@ssi.bg>
Signed-off-by: NSimon Horman <horms@verge.net.au>

net/netfilter/ipvs/ip_vs_conn.c

@@ -567,7 +567,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
 		if (!(cp->flags & IP_VS_CONN_F_TEMPLATE))
 			conn_flags &= ~IP_VS_CONN_F_INACTIVE;
 		/* connections inherit forwarding method from dest */
-		cp->flags &= ~IP_VS_CONN_F_FWD_MASK;
+		cp->flags &= ~(IP_VS_CONN_F_FWD_MASK | IP_VS_CONN_F_NOOUTPUT);
 	}
 	cp->flags |= conn_flags;
 	cp->dest = dest;