Fix public network not to be shared

If network is shared nova can try to bind a port in
public network.

Change-Id: Ie4f420999a92a23166571bd31565483bee55c29d
Related-Prod: https://mirantis.jira.com/browse/PROD-23349
diff --git a/neutron/client/service/public_v2.yml b/neutron/client/service/public_v2.yml
index 7c14248..1cef167 100644
--- a/neutron/client/service/public_v2.yml
+++ b/neutron/client/service/public_v2.yml
@@ -8,7 +8,7 @@
           admin_identity:
             network:
               public:
-                shared: True
+                shared: False
                 router_external: True
                 default: True
                 provider_network_type: flat