Enable cinder-volume in static models

Models:
virtual-mcp-pike-dvr-ssl
virtual-mcp-pike-dvr-ssl-barbican
Change-Id: Ice87024e28eb720c778e07bc08d895589023deda
diff --git a/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/compute.yml b/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/compute.yml
index 72c1133..bb4d099 100644
--- a/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/compute.yml
+++ b/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/compute.yml
@@ -3,6 +3,9 @@
 - system.linux.system.repo.mcp.extra
 - system.linux.system.repo.mcp.apt_mirantis.saltstack_2016_3
 - system.linux.network.hosts
+- system.linux.storage.loopback
+- system.cinder.volume.single
+- system.cinder.volume.backend.lvm
 - system.nova.compute.cluster
 - system.neutron.compute.cluster
 - system.ceilometer.client.nova_compute
@@ -17,6 +20,7 @@
     external_interface: ens6
     interface_mtu: 1500
     linux_system_codename: xenial
+    loopback_device_size: 20
   linux:
    network:
      interface: