[solum] 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: I568bd01f274b182aad96f6a16b37c361f4dfeef5

deliverables/ussuri/python-solumclient.yaml

@@ -14,6 +14,10 @@ releases:
     projects:
       - repo: openstack/python-solumclient
         hash: 18f7d3851c217916af2d9f167d272e192e67b1ca
+  - version: ussuri-em
+    projects:
+      - repo: openstack/python-solumclient
+        hash: 18f7d3851c217916af2d9f167d272e192e67b1ca
 branches:
   - name: stable/ussuri
     location: 3.1.0

deliverables/ussuri/solum-dashboard.yaml

@@ -19,6 +19,10 @@ releases:
       - repo: openstack/solum-dashboard
         hash: 0e9cc012ade5eb475780087ebf79cba5cfeb0572
     diff-start: 3.0.0.0rc1
+  - version: ussuri-em
+    projects:
+      - repo: openstack/solum-dashboard
+        hash: 0e9cc012ade5eb475780087ebf79cba5cfeb0572
 branches:
   - name: stable/ussuri
     location: 4.0.0.0rc1

deliverables/ussuri/solum.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/solum
         hash: f7c8d129e0bc19169f67d3073d2ab08194e66a12
     diff-start: 7.0.0.0rc1
+  - version: ussuri-em
+    projects:
+      - repo: openstack/solum
+        hash: f7c8d129e0bc19169f67d3073d2ab08194e66a12
 branches:
   - name: stable/ussuri
     location: 8.0.0.0rc1