[octavia] 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: I238227244c3e880ce82f3d2c9b5d50dac8425625

deliverables/train/octavia-dashboard.yaml

@@ -29,6 +29,10 @@ releases:
     projects:
       - repo: openstack/octavia-dashboard
         hash: 8463b8f443e2a1f493c5b7cedf7fca5259a231aa
+  - version: train-em
+    projects:
+      - repo: openstack/octavia-dashboard
+        hash: 8463b8f443e2a1f493c5b7cedf7fca5259a231aa
 branches:
   - name: stable/train
     location: 4.0.0.0rc1

deliverables/train/octavia-lib.yaml

@@ -27,4 +27,8 @@ releases:
     projects:
       - repo: openstack/octavia-lib
         hash: cec8b194211b5f6dc6c927210b082e8a4282a9d2
+  - version: train-em
+    projects:
+      - repo: openstack/octavia-lib
+        hash: cec8b194211b5f6dc6c927210b082e8a4282a9d2
 release-notes: https://docs.openstack.org/releasenotes/octavia-lib/train.html

deliverables/train/octavia.yaml

@@ -54,6 +54,10 @@ releases:
     projects:
       - repo: openstack/octavia
         hash: a686bc1c4cf4f73f14acf579465c2add046bbdc2
+  - version: train-em
+    projects:
+      - repo: openstack/octavia
+        hash: a686bc1c4cf4f73f14acf579465c2add046bbdc2
 branches:
   - name: stable/train
     location: 5.0.0.0rc1

deliverables/train/python-octaviaclient.yaml

@@ -22,4 +22,8 @@ releases:
     projects:
       - repo: openstack/python-octaviaclient
         hash: b5397ea3e45935246824eedf96727979e3323d0b
+  - version: train-em
+    projects:
+      - repo: openstack/python-octaviaclient
+        hash: b5397ea3e45935246824eedf96727979e3323d0b
 release-notes: https://docs.openstack.org/releasenotes/python-octaviaclient/train.html