[kolla] Transition Train to EM

This transition the train branch to extended maintenance.
Changes for bugfixes and things the team deems important are
still encouraged, but there will no longer be official releases
off of the branch.

Please +1 if the team is ready for us to proceed with this
transition, or -1 if there are any final backports currently in
flight that we should wait for. For the latter case, please
update the patch with the new commit hash after doing a final
release to get those changes out so we know to proceed with the
transition.

Change-Id: I227190c07435dc0bd755acf8c848d51ff5dbd7ee

deliverables/train/kayobe.yaml

@@ -65,4 +65,12 @@ releases:
         hash: fa9b73a54d22955ffbd132bb37fedfd69b985538
       - repo: openstack/kayobe-config-dev
         hash: 9d3bbef893730ff7d65a325ed30986f01df78bb0
+  - version: train-em
+    projects:
+      - repo: openstack/kayobe
+        hash: de5fa9ac0bd17a5e1140cb7725d4e7d3841d74f5
+      - repo: openstack/kayobe-config
+        hash: fa9b73a54d22955ffbd132bb37fedfd69b985538
+      - repo: openstack/kayobe-config-dev
+        hash: 9d3bbef893730ff7d65a325ed30986f01df78bb0
 release-notes: https://docs.openstack.org/releasenotes/kayobe/train.html

deliverables/train/kolla-ansible.yaml

@@ -49,4 +49,8 @@ releases:
     projects:
       - repo: openstack/kolla-ansible
         hash: 3a1b9470584fa3644be15d933de399472ac64812
+  - version: train-em
+    projects:
+      - repo: openstack/kolla-ansible
+        hash: 3a1b9470584fa3644be15d933de399472ac64812
 release-notes: https://docs.openstack.org/releasenotes/kolla-ansible/train.html

deliverables/train/kolla-cli.yaml

@@ -17,3 +17,7 @@ releases:
       - hash: 2fdd3889442d1f0e78199ecf7be3cd36bff645af
         repo: openstack/kolla-cli
     version: 9.0.0
+  - version: train-em
+    projects:
+      - repo: openstack/kolla-cli
+        hash: 2fdd3889442d1f0e78199ecf7be3cd36bff645af

deliverables/train/kolla.yaml

@@ -49,6 +49,10 @@ releases:
     projects:
       - repo: openstack/kolla
         hash: fa53a60c149026ff6641e1e1d9bae240dd888f3d
+  - version: train-em
+    projects:
+      - repo: openstack/kolla
+        hash: fa53a60c149026ff6641e1e1d9bae240dd888f3d
 cycle-highlights:
   - Switched to Python 3 in Debian and Ubuntu source images.
   - Introduced images and playbooks for Masakari, which supports instance