tty: serial: men_z135_uart.c: Don't initialize port->lock

port->lock get's initialized in uart_add_one_port(), no need to do it
in men_z135_probe().
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/men_z135_uart.c

@@ -839,7 +839,6 @@ static int men_z135_probe(struct mcb_device *mdev,
 	uart->port.membase = NULL;
 	uart->mdev = mdev;
 
-	spin_lock_init(&uart->port.lock);
 	spin_lock_init(&uart->lock);
 
 	err = uart_add_one_port(&men_z135_driver, &uart->port);