aio_contrail missing param and system update

Change-Id: I4f139a6f2eb1af29e10a8aab0bea9909a7e7af6a
diff --git a/classes/cluster/os_aio_contrail/openstack/compute.yml b/classes/cluster/os_aio_contrail/openstack/compute.yml
index b96b26d..f2916e6 100755
--- a/classes/cluster/os_aio_contrail/openstack/compute.yml
+++ b/classes/cluster/os_aio_contrail/openstack/compute.yml
@@ -15,6 +15,7 @@
     opencontrail_compute_iface: ens4
     linux_system_codename: xenial
     control_address: ${_param:single_address}
+    nova_aggregates: []
     nova_vncproxy_url: https://${_param:cluster_public_host}:6080
     nova_compute_ssh_public: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCltIn93BcTMzNK/n2eBze6PyTkmIgdDkeXNR9X4DqE48Va80ojv2pq8xuaBxiNITJzyl+4p4UvTTXo+HmuX8qbHvqgMGXvuPUCpndEfb2r67f6vpMqPwMgBrUg2ZKgN4OsSDHU+H0dia0cEaTjz5pvbUy9lIsSyhrqOUVF9reJq+boAvVEedm8fUqiZuiejAw2D27+rRtdEPgsKMnh3626YEsr963q4rjU/JssV/iKMNu7mk2a+koOrJ+aHvcVU8zJjfA0YghoeVT/I3GLU/MB/4tD/RyR8GM+UYbI4sgAC7ZOCdQyHdJgnEzx3SJIwcS65U0T2XYvn2qXHXqJ9iGZ root@mirantis.com
     nova_compute_avail_zone: