Update nova memcache defaults

Change-Id: Ia88107057d0e8a05f4734f43ed71044dc6f1b369
diff --git a/defaults/openstack/init.yml b/defaults/openstack/init.yml
index 49ad5c6..e0d808c 100644
--- a/defaults/openstack/init.yml
+++ b/defaults/openstack/init.yml
@@ -15,3 +15,6 @@
     # Cinder
     cinder_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
     cinder_memcache_secret_key: ''
+    # Nova
+    nova_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
+    nova_memcache_secret_key: ''
diff --git a/nova/compute/cluster.yml b/nova/compute/cluster.yml
index 92871c0..3053335 100644
--- a/nova/compute/cluster.yml
+++ b/nova/compute/cluster.yml
@@ -37,8 +37,6 @@
       SG9MrLHCd5l60aCUQg0UA5ed7Hd6SA314k+HwxJno9/wJ+voBeacMg==
       -----END RSA PRIVATE KEY-----
     cluster_internal_protocol: 'http'
-    nova_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
-    nova_memcache_secret_key: ''
   openssh:
     client:
       enabled: True
diff --git a/nova/compute/single.yml b/nova/compute/single.yml
index 90a2fa7..7ba6775 100644
--- a/nova/compute/single.yml
+++ b/nova/compute/single.yml
@@ -37,8 +37,6 @@
       SG9MrLHCd5l60aCUQg0UA5ed7Hd6SA314k+HwxJno9/wJ+voBeacMg==
       -----END RSA PRIVATE KEY-----
     cluster_internal_protocol: 'http'
-    nova_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
-    nova_memcache_secret_key: ''
   openssh:
     client:
       enabled: True
diff --git a/nova/control/cluster.yml b/nova/control/cluster.yml
index 3a2e293..330a233 100644
--- a/nova/control/cluster.yml
+++ b/nova/control/cluster.yml
@@ -14,8 +14,6 @@
     nova_disk_allocation_ratio: 1.0
     metadata_password: metadataPass
     cluster_internal_protocol: 'http'
-    nova_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
-    nova_memcache_secret_key: ''
   linux:
     system:
       package:
diff --git a/nova/control/single.yml b/nova/control/single.yml
index 51e856f..5b61f20 100644
--- a/nova/control/single.yml
+++ b/nova/control/single.yml
@@ -5,8 +5,6 @@
 parameters:
   _param:
     cluster_internal_protocol: 'http'
-    nova_memcache_security_enabled: ${_param:openstack_memcache_security_enabled}
-    nova_memcache_secret_key: ''
   linux:
     system:
       package: