Add service level metadata for neutron client

Neutron client has to enabled on the service level so that
service level metadata can rely on it.
The client state hasn't been used before that is why nothing
broke, but now it must be set properly.

Change-Id: Ib9905da3c2fe195afdddc865521bfe02d019cf9f
diff --git a/metadata/service/client/init.yml b/metadata/service/client/init.yml
new file mode 100644
index 0000000..d156a6b
--- /dev/null
+++ b/metadata/service/client/init.yml
@@ -0,0 +1,6 @@
+applications:
+  - neutron
+parameters:
+  neutron:
+    client:
+      enabled: true
\ No newline at end of file