ACPI: EC: Use msleep instead of udelay while waiting for event.

http://bugzilla.kernel.org/show_bug.cgi?id=10724

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/ec.c

@@ -194,7 +194,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 		while (time_before(jiffies, delay)) {
 			if (acpi_ec_check_status(ec, event))
 				return 0;
-			udelay(ACPI_EC_UDELAY);
+			msleep(1);
 		}
 	}
 	pr_err(PREFIX "acpi_ec_wait timeout, status = 0x%2.2x, event = %s\n",