watchdog: intel-mid: add Magic Closure flag

Adding WDIOF_MAGICCLOSE to Intel MID watchdog driver. Once the watchdog
is opened, it makes sense to disable watchdog only if it was gracefully
released.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/intel-mid_wdt.c

@@ -101,7 +101,7 @@ static irqreturn_t mid_wdt_irq(int irq, void *dev_id)
 
 static const struct watchdog_info mid_wdt_info = {
 	.identity = "Intel MID SCU watchdog",
-	.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT,
+	.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
 };
 
 static const struct watchdog_ops mid_wdt_ops = {