ovs-fw: Use TRANSIENT table for traffic classification

Commit ce8a0b2b7d73caf078c6634d6dded5117dbed265 introduces a TRANSIENT
table where all traffic local to br-int is sent after it's been
preprocessed by other features using openflow. This patch adopts the
table.

Change-Id: Ic66c186ab73bad6fcd133f2b9d15e07fd0eebb33
Related-bug: #1696983
diff --git a/neutron/tests/tempest/scenario/base.py b/neutron/tests/tempest/scenario/base.py
index 5ccbd1c..ac18ab5 100644
--- a/neutron/tests/tempest/scenario/base.py
+++ b/neutron/tests/tempest/scenario/base.py
@@ -192,10 +192,10 @@
         waiters.wait_for_server_status(self.os_primary.servers_client,
                                        self.server['server']['id'],
                                        constants.SERVER_STATUS_ACTIVE)
-        port = self.client.list_ports(network_id=self.network['id'],
-                                     device_id=self.server[
-                                          'server']['id'])['ports'][0]
-        self.fip = self.create_and_associate_floatingip(port['id'])
+        self.port = self.client.list_ports(network_id=self.network['id'],
+                                           device_id=self.server[
+                                               'server']['id'])['ports'][0]
+        self.fip = self.create_and_associate_floatingip(self.port['id'])
 
     def check_connectivity(self, host, ssh_user, ssh_key, servers=None):
         ssh_client = ssh.Client(host, ssh_user, pkey=ssh_key)