wl12xx: move sta_hlid into wlvif

move sta_hlid into the per-interface data, rather than
being global.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index 538d861..db55767 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -42,7 +42,7 @@
 		ret = wl12xx_cmd_set_default_wep_key(wl, id,
 						     wl->ap_bcast_hlid);
 	else
-		ret = wl12xx_cmd_set_default_wep_key(wl, id, wl->sta_hlid);
+		ret = wl12xx_cmd_set_default_wep_key(wl, id, wlvif->sta.hlid);
 
 	if (ret < 0)
 		return ret;
@@ -199,7 +199,7 @@
 	     test_bit(WL1271_FLAG_IBSS_JOINED, &wl->flags)) &&
 	    !ieee80211_is_auth(hdr->frame_control) &&
 	    !ieee80211_is_assoc_req(hdr->frame_control))
-		return wl->sta_hlid;
+		return wlvif->sta.hlid;
 	else
 		return wl->dev_hlid;
 }