net: freescale: ucc_geth: Use the correct type to store WoL opts

The WoL opts are represented through a bitmask stored in a u32. As this
mask is copied as-is in the driver, make sure we use the exact same type
to store them internally.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/ucc_geth.h

@@ -1216,7 +1216,7 @@ struct ucc_geth_private {
 	int oldspeed;
 	int oldduplex;
 	int oldlink;
-	int wol_en;
+	u32 wol_en;
 	u32 phy_wol_en;
 
 	struct device_node *node;