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/wavelan_cs.p.h b/drivers/net/wireless/wavelan_cs.p.h
index 706fd300..81d9153 100644
--- a/drivers/net/wireless/wavelan_cs.p.h
+++ b/drivers/net/wireless/wavelan_cs.p.h
@@ -707,7 +707,7 @@
 	wv_packet_write(struct net_device *,	/* Write a packet to the Tx buffer */
 			void *,
 			short);
-static int
+static netdev_tx_t
 	wavelan_packet_xmit(struct sk_buff *,	/* Send a packet */
 			    struct net_device *);
 /* -------------------- HARDWARE CONFIGURATION -------------------- */