wl12xx: move rssi_thold and last_rssi_event into wlvif

move rssi_thold and last_rssi_event 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 9d9d3fb..5a82450 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -514,9 +514,6 @@
 	/* in dBm */
 	int power_level;
 
-	int rssi_thold;
-	int last_rssi_event;
-
 	struct wl1271_stats stats;
 
 	__le32 buffer_32;
@@ -652,6 +649,9 @@
 
 	/* retry counter for PSM entries */
 	u8 psm_entry_retry;
+
+	int rssi_thold;
+	int last_rssi_event;
 };
 
 static inline struct wl12xx_vif *wl12xx_vif_to_data(struct ieee80211_vif *vif)