[cinder] Transition Stein to EM

This transition the stein 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: Icea2a40089bcd187fcc81ec6a470eae1bb981753

deliverables/stein/cinder.yaml

@@ -63,6 +63,10 @@ releases:
     projects:
       - repo: openstack/cinder
         hash: 13d48f8589d8981cebac6978f4b22d840f5c9132
+  - version: stein-em
+    projects:
+      - repo: openstack/cinder
+        hash: 13d48f8589d8981cebac6978f4b22d840f5c9132
 branches:
   - location: 14.0.0.0rc1
     name: stable/stein

deliverables/stein/os-brick.yaml

@@ -55,6 +55,10 @@ releases:
       - hash: 173601116eb5e00274b10898b56b37dc42d685ac
         repo: openstack/os-brick
     version: 2.8.7
+  - version: stein-em
+    projects:
+      - repo: openstack/os-brick
+        hash: 173601116eb5e00274b10898b56b37dc42d685ac
 branches:
   - location: 2.8.1
     name: stable/stein

deliverables/stein/python-brick-cinderclient-ext.yaml

@@ -11,6 +11,10 @@ releases:
       - hash: 94c1a461ec86531882c42c6359c8198a5b5e2db9
         repo: openstack/python-brick-cinderclient-ext
     version: 0.10.0
+  - version: stein-em
+    projects:
+      - repo: openstack/python-brick-cinderclient-ext
+        hash: 94c1a461ec86531882c42c6359c8198a5b5e2db9
 branches:
   - location: 0.10.0
     name: stable/stein

deliverables/stein/python-cinderclient.yaml

@@ -21,6 +21,10 @@ releases:
       - hash: 511224425804621550bf30403f7768eebe6f34ca
         repo: openstack/python-cinderclient
     version: 4.2.2
+  - version: stein-em
+    projects:
+      - repo: openstack/python-cinderclient
+        hash: 511224425804621550bf30403f7768eebe6f34ca
 repository-settings:
   openstack/python-cinderclient: {}
 branches: