Adds flavor API tests

This patch adds flavor API tests to the Octavia tempest plugin.

Depends-On: https://review.openstack.org/626819
Change-Id: I863ca500d255fe41eef2d7434e540d53b9ead903
diff --git a/octavia_tempest_plugin/tests/test_base.py b/octavia_tempest_plugin/tests/test_base.py
index 092fdcc..4ba5cae 100644
--- a/octavia_tempest_plugin/tests/test_base.py
+++ b/octavia_tempest_plugin/tests/test_base.py
@@ -124,6 +124,8 @@
         cls.mem_amphora_client = cls.os_roles_lb_member.amphora_client
         cls.lb_admin_flavor_profile_client = (
             cls.os_roles_lb_admin.flavor_profile_client)
+        cls.lb_admin_flavor_client = cls.os_roles_lb_admin.flavor_client
+        cls.mem_flavor_client = cls.os_roles_lb_member.flavor_client
 
     @classmethod
     def resource_setup(cls):