3c59x: Use device_set_wakeup_enable

Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set this bit by calling device_set_wakeup_enable().

This restores proper WOL for the 3c59x driver.
Reported-and-tested-by: Graeme Wilford <gwilford@gmail.com>
Reported-by: Gunnar Degnbol <degnbol@danbbs.dk>
Signed-off-by: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/3c59x.c

@@ -3109,6 +3109,8 @@ static void acpi_set_WOL(struct net_device *dev)
 	struct vortex_private *vp = netdev_priv(dev);
 	void __iomem *ioaddr = vp->ioaddr;
 
+	device_set_wakeup_enable(vp->gendev, vp->enable_wol);
+
 	if (vp->enable_wol) {
 		/* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
 		EL3WINDOW(7);