wpa_gui-qt4: Fix WPS AP detection for peer window

wpa_supplicant/wpa_gui-qt4/peers.cpp

@@ -253,7 +253,7 @@ void Peers::add_scan_results()
 		QStandardItem *item = new QStandardItem(*default_icon, name);
 		if (item) {
 			item->setData(QString(reply), peer_role_address);
-			if (flags.contains("[WPS]"))
+			if (flags.contains("[WPS"))
 				item->setData(PEER_TYPE_AP_WPS,
 					      peer_role_type);
 			else