mac80211: add vif to flush call

This will allow the low level driver to make decision based
on the vif such as queues etc...
Since the vif might be NULL, we can't add it to the tracing
functions.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[fix staging rtl8821ae driver]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/cw1200/sta.c

@@ -936,7 +936,8 @@ static int __cw1200_flush(struct cw1200_common *priv, bool drop)
 	return ret;
 }
 
-void cw1200_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
+void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		  u32 queues, bool drop)
 {
 	struct cw1200_common *priv = hw->priv;