[cyborg] 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: I8ae921569d1dd651fb2db4bf7b5fcaad7b973fd5

deliverables/stein/cyborg.yaml

@@ -22,6 +22,10 @@ releases:
       - hash: 0160a6b3bbcd94c479780e71510bee5fc16b5df7
         repo: openstack/cyborg
     version: 2.0.0
+  - version: stein-em
+    projects:
+      - repo: openstack/cyborg
+        hash: 0160a6b3bbcd94c479780e71510bee5fc16b5df7
 cycle-highlights:
   - Add FPGA programming support
   - Add GPU drivers

deliverables/stein/os-acc.yaml

@@ -12,6 +12,10 @@ releases:
       - hash: 0506812fff952bf8df0942cbe7d45a07d464ec38
         repo: openstack/os-acc
     version: 0.2.0
+  - version: stein-em
+    projects:
+      - repo: openstack/os-acc
+        hash: 0506812fff952bf8df0942cbe7d45a07d464ec38
 branches:
   - location: 0.2.0
     name: stable/stein

deliverables/stein/python-cyborgclient.yaml

@@ -17,3 +17,7 @@ releases:
       - hash: dfe15c51b7d1660b3bad055b067e4c2f4a1af2fe
         repo: openstack/python-cyborgclient
     version: 0.3.0
+  - version: stein-em
+    projects:
+      - repo: openstack/python-cyborgclient
+        hash: dfe15c51b7d1660b3bad055b067e4c2f4a1af2fe