tcp: Use sk ino number for opening tcp stream image on restore

It was accidentally broken by 424a4adb. It's better to use sk ino
instead of sk id, since tcp connection may be unbound from any fds
(not supported now) and thus there may be no ID for those.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

sk-tcp.c

@@ -441,7 +441,7 @@ static int restore_tcp_conn_state(int sk, struct inet_sk_info *ii)
 
 	pr_info("Restoring TCP connection id %x ino %x\n", ii->ie->id, ii->ie->ino);
 
-	ifd = open_image_ro(CR_FD_TCP_STREAM, ii->ie->id);
+	ifd = open_image_ro(CR_FD_TCP_STREAM, ii->ie->ino);
 	if (ifd < 0)
 		goto err;