Fix pike,queens contrail models

Add 'secrets_encryption_enabled' and 'openstack_keystone_security'
Fix vsrx for bm and heat envs
Add valid public and tempest network for tests
Remove kvm4-6

Change-Id: I4a1632b77f95d5197deb5970a3200606910a5e74
diff --git a/tcp_tests/templates/heat-cicd-pike-contrail41-sl/underlay.hot b/tcp_tests/templates/heat-cicd-pike-contrail41-sl/underlay.hot
index 81a1a84..e421244 100644
--- a/tcp_tests/templates/heat-cicd-pike-contrail41-sl/underlay.hot
+++ b/tcp_tests/templates/heat-cicd-pike-contrail41-sl/underlay.hot
@@ -20,7 +20,7 @@
     default: "10.8.0.0/24"
   external_subnet_cidr:
     type: string
-    default: "192.168.200.0/24"
+    default: "10.9.0.0/24"
   management_subnet_cidr:
     type: string
     default: "10.7.0.0/24"