Enable StarlingX in QEMU/KVM VM

To support StarlingX running in Openstack Nova VM (QEMU/KVM
environment), there is a new user parameter added in ansible
playbook to indicate if the system is running in an Openstack VM.
A corresponding service parameter is created in service parameter
and to be used to generate a puppet hieradata "virtual_system".

A couple of changes required for "virtual system" only:
- disable kubelet cpu manager to use full set of cpu and
  memory resources
- set registry.central to system controller's mgmt IP on
  subcloud to be able to pull images from central cloud
  registry in DC mode
- explicitly set registry.local to subcloud's mgmt IP on
  subcloud as dcorch synchronizes the dns server with
  system controller's dns server which cannot be reached
  on subcloud

Change-Id: I3b21b76cc58a71319a32d2ca2e11d35306ba2292
Story: 2007858
Task: 40720
Depends-On: https://review.opendev.org/747478
Signed-off-by: Angie Wang <angie.wang@windriver.com>

puppet-manifests/src/modules/platform/manifests/params.pp

@@ -25,6 +25,8 @@ class platform::params (
   $security_feature = undef,
   $stx_openstack_applied = false,
   $system_controller_addr = undef,
+  $system_controller_mgmt_addr = undef,
+  $virtual_system = false,
 ) {
   $ipv4 = 4
   $ipv6 = 6