wireless: convert drivers to netdev_tx_t

Mostly just simple conversions:
  * ray_cs had bogus return of NET_TX_LOCKED but driver
    was not using NETIF_F_LLTX
  * hostap and ipw2x00 had some code that returned value
    from a called function that also had to change to return netdev_tx_t

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
index f96c634..921a082 100644
--- a/drivers/net/wireless/arlan-main.c
+++ b/drivers/net/wireless/arlan-main.c
@@ -77,7 +77,7 @@
 static int arlans_found;
 
 static  int 	arlan_open(struct net_device *dev);
-static  int 	arlan_tx(struct sk_buff *skb, struct net_device *dev);
+static  netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev);
 static  irqreturn_t arlan_interrupt(int irq, void *dev_id);
 static  int 	arlan_close(struct net_device *dev);
 static  struct net_device_stats *
@@ -1169,7 +1169,7 @@
 }
 
 
-static int arlan_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev)
 {
 	short length;
 	unsigned char *buf;