davinci: emac buildfix

CC      drivers/net/davinci_emac.o
drivers/net/davinci_emac.c: In function 'emac_adjust_link':
drivers/net/davinci_emac.c:2323: error: incompatible type for argument 1 of '_spin_lock_irqsave'
make[2]: *** [drivers/net/davinci_emac.o] Error 1
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

drivers/net/davinci_emac.c

@@ -2320,7 +2320,7 @@ static void emac_adjust_link(struct net_device *ndev)
 	unsigned long flags;
 	int new_state = 0;
 
-	spin_lock_irqsave(priv->lock, flags);
+	spin_lock_irqsave(&priv->lock, flags);
 
 	if (phydev->link) {
 		/* check the mode of operation - full/half duplex */