cfg80211: fix TDLS setup with VHT peers

Some VHT TDLS peers (Google Nexus 5) include the VHT-AID IE in their
TDLS setup request/response. Usermode passes this aid as the station
aid, causing it to fail verifiction, since this happens in the
"set_station" stage. Make an exception for the TDLS use-case.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/nl80211.c

@@ -3815,7 +3815,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
 {
 	if (params->listen_interval != -1)
 		return -EINVAL;
-	if (params->aid)
+	if (params->aid &&
+	    !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
 		return -EINVAL;
 
 	/* When you run into this, adjust the code below for the new flag */