Presenting upgrade_levels option

Change-Id: Iaf4d329bc141a5c34ea13f358780318510ce1be1
diff --git a/tests/pillar/compute_cluster.sls b/tests/pillar/compute_cluster.sls
index c3a2485..58f98ef 100644
--- a/tests/pillar/compute_cluster.sls
+++ b/tests/pillar/compute_cluster.sls
@@ -66,3 +66,5 @@
         port: 11211
     libvirt:
       hw_disk_discard: unmap
+    upgrade_levels:
+      compute: liberty
diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index 9744dd1..07cb450 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -62,3 +62,5 @@
       'context_is_admin': 'role:admin or role:administrator'
       'compute:create': 'rule:admin_or_owner'
       'compute:create:attach_network':
+    upgrade_levels:
+      compute: liberty