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/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 4c69ae1..a1084d1 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -402,7 +402,6 @@
 	u8 mac_addr[ETH_ALEN];
 	int channel;
 	u8 system_hlid;
-	u8 sta_hlid;
 	u8 dev_hlid;
 	u8 ap_global_hlid;
 	u8 ap_bcast_hlid;
@@ -624,6 +623,12 @@
 	/* sta/ibss specific */
 	u8 dev_role_id;
 
+	union {
+		struct {
+			u8 hlid;
+		} sta;
+	};
+
 	u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
 	u8 ssid_len;