VSOCK: fix outdated sk_state value in hvs_release()

Since commit 3b4477d ("VSOCK: use TCP
state constants for sk_state") VSOCK has used TCP_* constants for
sk_state.

Commit b4562ca ("hv_sock: add locking
in the open/close/release code paths") reintroduced the SS_DISCONNECTING
constant.

This patch replaces the old SS_DISCONNECTING with the new TCP_CLOSING
constant.

CC: Dexuan Cui <[email protected]>
CC: Cathy Avery <[email protected]>
Signed-off-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Jorgen Hansen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

net/vmw_vsock/hyperv_transport.c

@@ -487,7 +487,7 @@ static void hvs_release(struct vsock_sock *vsk)
 
 	lock_sock(sk);
 
-	sk->sk_state = SS_DISCONNECTING;
+	sk->sk_state = TCP_CLOSING;
 	vsock_remove_sock(vsk);
 
 	release_sock(sk);