Enable cloud-init based VCP provisioning

Use Cloud-init to provision Virtual Control Plane by default.

Change-Id: Ife06ca7e26561fa4506dc5bd6361866041e67962
Closes-Bug: PROD-22191
diff --git a/salt/control/cluster/init.yml b/salt/control/cluster/init.yml
index 49d30b3..20ae7fa 100644
--- a/salt/control/cluster/init.yml
+++ b/salt/control/cluster/init.yml
@@ -7,3 +7,9 @@
         internal:
           rng:
             backend: ${_param:salt_control_cluster_rng_backend}
+          seed: cloud-init
+          cloud_init:
+            user_data:
+              salt_minion:
+                conf:
+                  master: ${_param:infra_config_deploy_address}