au1000_eth: use 'unsigned long' for irqflags

The patch was generated using the Coccinelle semantic patch framework.

Cc: Julia Lawall <julia@diku.dk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: NVegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

drivers/net/au1000_eth.c

@@ -807,7 +807,7 @@ static struct net_device * au1000_probe(int port_num)
 static int au1000_init(struct net_device *dev)
 {
 	struct au1000_private *aup = (struct au1000_private *) dev->priv;
-	u32 flags;
+	unsigned long flags;
 	int i;
 	u32 control;