[SERIAL] replace schedule_timeout() with msleep()

Patch from: Nishanth Aravamudan

Use msleep() instead of schedule_timeout() to
guarantee the task delays for the desired time.

Signed-off-by: Nishanth Aravamudan
Signed-off-by: Russell King

drivers/serial/8250_pci.c

@@ -574,8 +574,7 @@ titan_400l_800l_setup(struct pci_dev *dev, struct pci_board *board,
 
 static int __devinit pci_xircom_init(struct pci_dev *dev)
 {
-	__set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ/10);
+	msleep(100);
 	return 0;
 }