[octavia] Transition Ussuri to EM

This transition the ussuri 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: I92b8087c297640f1076f6379c456933eabf3a6d6

deliverables/ussuri/octavia-dashboard.yaml

@@ -29,6 +29,10 @@ releases:
     projects:
       - repo: openstack/octavia-dashboard
         hash: fd73b213026617a2949cebcc834b84246dd540a3
+  - version: ussuri-em
+    projects:
+      - repo: openstack/octavia-dashboard
+        hash: fd73b213026617a2949cebcc834b84246dd540a3
 branches:
   - name: stable/ussuri
     location: 5.0.0.0rc1

deliverables/ussuri/octavia-lib.yaml

@@ -19,4 +19,8 @@ releases:
     projects:
       - repo: openstack/octavia-lib
         hash: 99118d2e47f24fc9aeccb8da530cd8133e530cc9
+  - version: ussuri-em
+    projects:
+      - repo: openstack/octavia-lib
+        hash: 99118d2e47f24fc9aeccb8da530cd8133e530cc9
 release-notes: https://docs.openstack.org/releasenotes/octavia-lib/ussuri.html

deliverables/ussuri/octavia.yaml

@@ -49,6 +49,10 @@ releases:
     projects:
       - repo: openstack/octavia
         hash: 0b4e05aeb6525a7f42c5f4d1193def75d9551529
+  - version: ussuri-em
+    projects:
+      - repo: openstack/octavia
+        hash: 0b4e05aeb6525a7f42c5f4d1193def75d9551529
 branches:
   - name: stable/ussuri
     location: 6.0.0.0rc1

deliverables/ussuri/python-octaviaclient.yaml

@@ -26,4 +26,8 @@ releases:
     projects:
       - repo: openstack/python-octaviaclient
         hash: 6d843fb6f1c3ed6aa7bd8c9acf6afea15fc783a3
+  - version: ussuri-em
+    projects:
+      - repo: openstack/python-octaviaclient
+        hash: 6d843fb6f1c3ed6aa7bd8c9acf6afea15fc783a3
 release-notes: https://docs.openstack.org/releasenotes/python-octaviaclient/ussuri.html