mac80211: save tx params per sdata

save and configure tx param per sdata, rather than
per hardware.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cc80d32..cd37a4e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -936,8 +936,8 @@
 			    params.aifs, params.cw_min, params.cw_max,
 			    params.txop, params.uapsd);
 #endif
-		local->tx_conf[queue] = params;
-		if (drv_conf_tx(local, queue, &params))
+		sdata->tx_conf[queue] = params;
+		if (drv_conf_tx(local, sdata, queue, &params))
 			wiphy_debug(local->hw.wiphy,
 				    "failed to set TX queue parameters for queue %d\n",
 				    queue);