[nova] Transition Ocata to End of Life

This transition the Ocata branch to End of Life. The last patch of the
branch will be tagged with ocata-eol tag. The ocata branch cannot be
used anymore and will be deleted if this patch merges.

This is needed as stable/ocata is not actively maintained in the recent
period and thus gate is broken due to job failures. By removing these
branches, infra resources will be freed up, too.

Please try to identify any zuul job, that is defined outside of the
repositories in this patch (for example in openstack-zuul-jobs, etc.)
and won't be used anymore if stable/ocata is deleted, and propose a job
removal patch for them.

Please +1 if the team is ready for us to proceed with this transition,
or -1 if there are still some activity on the branch and the team wants
to continue to maintain it.

Change-Id: I17f452f4802ebaa4d8afc1f85647a3a7ab0ee51b

deliverables/ocata/nova.yaml

@@ -93,5 +93,9 @@ releases:
       - hash: 8c663dbd25a0dab1c2d903efc7cf7fc3d9d07b00
         repo: openstack/nova
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/nova
+        hash: 105626f650902476f8149b2032ed6e3551346516
 repository-settings:
   openstack/nova: {}

deliverables/ocata/os-vif.yaml

@@ -28,5 +28,9 @@ releases:
       - hash: f5f2071fe551c127e9ecafb8a44baf44b9b92d9b
         repo: openstack/os-vif
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/os-vif
+        hash: 112ec4e00fb58d74e9bf7757a2f514f38428a09a
 repository-settings:
   openstack/os-vif: {}

deliverables/ocata/python-novaclient.yaml

@@ -29,5 +29,9 @@ releases:
       - hash: 2e2317bfca941e59899edda181241f320e2033f8
         repo: openstack/python-novaclient
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/python-novaclient
+        hash: af9661197d97857d0b71760e8e9fcc7125833b06
 repository-settings:
   openstack/python-novaclient: {}