Enable duplex platform upgrades

Enable the mechanism to upgrade the platform components on
a running StarlingX system with duplex controllers.

This includes upgrade updates for:
  o generation of kubernetes join_cmd to enable the N+1 controller
    to join the cluster
  o migrate of kubernetes config
  o migrate etcd on host-swact
  o migrate of DistributedCloud dcmanager and dcorch databases

A maintenance release for stx3.x is required to upgrade to stx4.0

Tests Performed with duplex controller: AIO-DX and Standard
- system load-import
- system health-query-upgrade
- system upgrade-start
- system host-upgrade controller-0
- system host-lock/unlock host N while controller N, N+1
- system host-lock/unlock controller-0 while controller N+1
- system host-upgrade controller-1
- system host-upgrade storage
- system host-upgrade worker
- system upgrade-activate
- system upgrade-abort
- system host-downgrade
- system upgrade-complete
- verified application (e.g. stx-monitor) over upgrade

Change-Id: I4267c7b32b2e7b59b5ffdd8146288698962da1e0
Story: 2007403
Task: 39243
Task: 39244
Task: 39245
Signed-off-by: John Kung <john.kung@windriver.com>

tsconfig/centos/build_srpm.data

@@ -1,2 +1,2 @@
 SRC_DIR="tsconfig"
-TIS_PATCH_VER=11
+TIS_PATCH_VER=12

tsconfig/tsconfig/tsconfig/tsconfig.py

@@ -171,6 +171,7 @@ ARMADA_PATH = PLATFORM_PATH + "/armada/" + SW_VERSION
 HELM_OVERRIDES_PATH = PLATFORM_PATH + "/helm/" + SW_VERSION
 KEYRING_PATH = PLATFORM_PATH + "/.keyring/" + SW_VERSION
 DEPLOY_PATH = PLATFORM_PATH + "/deploy/" + SW_VERSION
+ETCD_PATH = "/opt/etcd"
 EXTENSION_PATH = "/opt/extension"
 PLATFORM_CEPH_CONF_PATH = CONFIG_PATH + 'ceph-config'