wl12xx: replace wl->bssid with vif->bss_conf.bssid

Use the per-interface vif->bss_conf instead of the global wl->bssid.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c
index af4cef3..30d05fd 100644
--- a/drivers/net/wireless/wl12xx/event.c
+++ b/drivers/net/wireless/wl12xx/event.c
@@ -184,7 +184,7 @@
 		if (!wl->ba_rx_bitmap)
 			return;
 		ieee80211_stop_rx_ba_session(wl->vif, wl->ba_rx_bitmap,
-					     wl->bssid);
+					     wl->vif->bss_conf.bssid);
 	} else {
 		int i;
 		struct wl1271_link *lnk;