staging: ks7010: adapt to new trans_start handling

trans_start is gone from netdevice, so use the new helper function to
set the mark.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_wlan_net.c

@@ -3398,7 +3398,7 @@ int ks_wlan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		netif_stop_queue(dev);
 
 	rc = hostif_data_request(priv, skb);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	DPRINTK(4, "rc=%d\n", rc);
 	if (rc) {