ARM: OMAP: Change watchdog driver_name back to "omap_wdt"

A previous patch mistakenly renamed the watchdog driver's driver_name.
Signed-off-by: Komal Shah <komal_shah802003@yahoo.com>
Signed-off-by: Juha Yrjl <juha.yrjola@nokia.com>

drivers/char/watchdog/omap_wdt.c

@@ -362,7 +362,7 @@ static struct platform_driver omap_wdt_driver = {
 	.resume		= omap_wdt_resume,
 	.driver		= {
 		.owner	= THIS_MODULE,
-		.name	= "omap-wdt",
+		.name	= "omap_wdt",
 	},
 };