superio/*/superio.c: Don't hide pointer types behind typedefs

Hiding pointer types behind 'typedef's is usually not a great
idea at the best of times. Worse the typedef becomes an integer
at different stages in Coreboot. Let us refrain from doing this
at all.

Change-Id: Ia2ca8c98bb489daaa58f379433875864f6efabc8
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7136
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/superio/nuvoton/wpcm450/superio.c b/src/superio/nuvoton/wpcm450/superio.c
index ff815cf..5322ace 100644
--- a/src/superio/nuvoton/wpcm450/superio.c
+++ b/src/superio/nuvoton/wpcm450/superio.c
@@ -27,7 +27,7 @@
 #include <stdlib.h>
 #include "wpcm450.h"
 
-static void init(device_t dev)
+static void init(struct device *dev)
 {
 
 	if (!dev->enabled)