[upgrade from Pike to Queens] missed system.keystone.client.v3 class in the reclass

Change-Id: Iaa357b6fb210497b604736c411cb9141af7538cf
diff --git a/tcp_tests/tests/system/test_upgrade_pike_queens.py b/tcp_tests/tests/system/test_upgrade_pike_queens.py
index 0f2082c..0ddf20b 100644
--- a/tcp_tests/tests/system/test_upgrade_pike_queens.py
+++ b/tcp_tests/tests/system/test_upgrade_pike_queens.py
@@ -99,6 +99,10 @@
             'parameters._param.openstack_old_version',
             'pike',
             infra_init_yaml)
+        reclass_actions.add_class(
+            'system.keystone.client.v3',
+            'cluster/*/openstack/control_init.yml'
+        )
         underlay_actions.check_call(
             node_name=cfg_node, verbose=verbose,
             cmd="cd /srv/salt/reclass; git add -u && "