sftp: use TCP, not just any protocol

modules/access/sftp.c

@@ -224,7 +224,7 @@ static int Open( vlc_object_t* p_this )
 
 
     /* Connect to the server using a regular socket */
-    p_sys->i_socket = net_Connect( p_access, url.psz_host, i_port, SOCK_STREAM, 0 );
+    p_sys->i_socket = net_ConnectTCP( p_access, url.psz_host, i_port );
     if( p_sys->i_socket < 0 )
     {
         msg_Err( p_access, "Impossible to open the connection to %s:%i", url.psz_host, i_port );