s390/con3270: use msecs_to_jiffies()

Use msecs_to_jiffies() instead of HZ/10.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

drivers/s390/char/con3270.c

@@ -1769,7 +1769,7 @@ static void tty3270_do_write(struct tty3270 *tp, struct tty_struct *tty,
 	}
 	/* Setup timer to update display after 1/10 second */
 	if (!timer_pending(&tp->timer))
-		tty3270_set_timer(tp, HZ/10);
+		tty3270_set_timer(tp, msecs_to_jiffies(100));
 
 	spin_unlock_irq(&tp->view.lock);
 }