watchdog: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable watchdog
drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: more drivers; registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/watchdog/mpc83xx_wdt.c b/drivers/watchdog/mpc83xx_wdt.c
index 6369f56..b16c5cd 100644
--- a/drivers/watchdog/mpc83xx_wdt.c
+++ b/drivers/watchdog/mpc83xx_wdt.c
@@ -206,6 +206,7 @@
 	.remove		= __devexit_p(mpc83xx_wdt_remove),
 	.driver		= {
 		.name	= "mpc83xx_wdt",
+		.owner	= THIS_MODULE,
 	},
 };
 
@@ -226,3 +227,4 @@
 MODULE_DESCRIPTION("Driver for watchdog timer in MPC83xx uProcessor");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:mpc83xx_wdt");