Unhardcode neutron protocol

Neutron protocol was hardcoded on cluster level, this
patch will dynamically pick protocol from neutron_service_protocol
variable.

Change-Id: I87181e4bfe0e350f9aa28f7424efe117be1f599d
Related-Prod: PROD-18021
diff --git a/metadata/service/conductor/cluster.yml b/metadata/service/conductor/cluster.yml
index 679fc5d..a65eb07 100644
--- a/metadata/service/conductor/cluster.yml
+++ b/metadata/service/conductor/cluster.yml
@@ -1,6 +1,8 @@
 applications:
   - ironic
 parameters:
+  _param:
+    neutron_service_protocol: http
   ironic:
     conductor:
       enabled: true
@@ -42,7 +44,7 @@
         project_name: ${ironic:conductor:identity:tenant}
         password: ${ironic:conductor:identity:password}
         username: ${ironic:conductor:identity:user}
-        url: http://${_param:neutron_service_host}:9696
+        url: ${_param:neutron_service_protocol}://${_param:neutron_service_host}:9696
       glance:
         auth_strategy: 'keystone'
         auth_type: password