release oslo's deliverables for xena

Change-Id: I5ba11909a1bc08c7262042df172a13ff5b215199

deliverables/xena/oslo.cache.yaml

@@ -11,3 +11,7 @@ releases:
     projects:
       - repo: openstack/oslo.cache
         hash: d89cc82be3f2db66f5f2b5bb3facafc344c4d1f4
+  - version: 2.8.1
+    projects:
+      - repo: openstack/oslo.cache
+        hash: 40946a9349407f36a43d5020d991085c11468698

deliverables/xena/oslo.db.yaml

@@ -15,3 +15,7 @@ releases:
     projects:
       - repo: openstack/oslo.db
         hash: 78d12d76969730d25f81b069b1b40730b91bd62f
+  - version: 9.1.0
+    projects:
+      - repo: openstack/oslo.db
+        hash: be2cc6a2ce40f6666d1e2b0f13054e7be7bc792e

deliverables/xena/oslo.policy.yaml

@@ -11,3 +11,7 @@ releases:
     projects:
       - repo: openstack/oslo.policy
         hash: a42841c25b47ea17a3c1fa49aaf9bbaed67f4210
+  - version: 3.8.1
+    projects:
+      - repo: openstack/oslo.policy
+        hash: 0bc8a2e70faaf8600a44c6e7e366d2296adc128b

deliverables/xena/oslo.service.yaml

@@ -6,3 +6,8 @@ team: oslo
 type: library
 repository-settings:
   openstack/oslo.service: {}
+releases:
+  - version: 2.6.0
+    projects:
+      - repo: openstack/oslo.service
+        hash: 091fd6510a29891f74f1ab141ef158065f9a56fd

deliverables/xena/oslo.utils.yaml

@@ -11,3 +11,7 @@ releases:
     projects:
       - repo: openstack/oslo.utils
         hash: 36fa21870f9d00abcfe723b212bbb35911449509
+  - version: 4.9.1
+    projects:
+      - repo: openstack/oslo.utils
+        hash: 25e3d5889d6235658bcc21bd85d24ba2c2240c6a