wl12xx: move ssid and ssid_len into wlvif

move ssid and ssid_len 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 d84c0de..539cf40 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -400,8 +400,6 @@
 	s8 hw_pg_ver;
 
 	u8 mac_addr[ETH_ALEN];
-	u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
-	u8 ssid_len;
 	int channel;
 	u8 role_id;
 	u8 dev_role_id;
@@ -630,6 +628,9 @@
 	u8 bss_type;
 	u8 p2p; /* we are using p2p role */
 
+	u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
+	u8 ssid_len;
+
 	u32 basic_rate_set;
 
 	/*