caif: Clear shutdown mask to zero at reconnect.

Clear caif sockets's shutdown mask at (re)connect.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/caif/caif_socket.c

@@ -220,6 +220,7 @@ static void caif_ctrl_cb(struct cflayer *layr,
 						cfsk_hold, cfsk_put);
 		cf_sk->sk.sk_state = CAIF_CONNECTED;
 		set_tx_flow_on(cf_sk);
+		cf_sk->sk.sk_shutdown = 0;
 		cf_sk->sk.sk_state_change(&cf_sk->sk);
 		break;