Add missing call to uart_update_timeout()

commit 8b979f7c upstream.

This patch fixes a problem reported here:
http://article.gmane.org/gmane.linux.ports.arm.kernel/155242/match=auartSigned-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

drivers/tty/serial/mxs-auart.c

@@ -368,6 +368,8 @@ static void mxs_auart_settermios(struct uart_port *u,
 
 	writel(ctrl, u->membase + AUART_LINECTRL);
 	writel(ctrl2, u->membase + AUART_CTRL2);
+
+	uart_update_timeout(u, termios->c_cflag, baud);
 }
 
 static irqreturn_t mxs_auart_irq_handle(int irq, void *context)