Release final os-client-config for ussuri

Final ussuri non-client lib release for the April 2 deadline.

Please leave +1 if we are all set and can proceed. Leave -1 if we
need to wait a little bit longer for something final to land,
then update it with a better commit hash to use for the release
when ready.

Patches with no response will be approved a few days after the
deadline.

Change-Id: I3d4678bdb3b02a70e2c136c7f7fbc4513a085bff
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

deliverables/ussuri/os-client-config.yaml

@@ -11,3 +11,10 @@ releases:
     projects:
       - repo: openstack/os-client-config
         hash: efd56a806e5d1ffad3dc8f31116c7e045b81ad04
+  - version: 2.1.0
+    projects:
+      - repo: openstack/os-client-config
+        hash: bc96c23a9c44cee8f54d7349b288a406cec3f10a
+branches:
+  - name: stable/ussuri
+    location: 2.1.0