watchdog: ep93xx_wdt: Fix timeout after conversion to watchdog core

After the conversion of this driver to the watchdog core, I noticed that we
miss setting the initial timeout of the wdt device.
This results in a failure of the WDIOC_GETTIMEOUT ioctl call.

Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Tested-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index 414ce8f..29575f8 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -139,6 +139,7 @@
 
 	val = readl(mmio_base + EP93XX_WATCHDOG);
 	ep93xx_wdt_wdd.bootstatus = (val & 0x01) ? WDIOF_CARDRESET : 0;
+	ep93xx_wdt_wdd.timeout = timeout;
 
 	watchdog_set_nowayout(&ep93xx_wdt_wdd, nowayout);