SM-Puppet-Upgrade: checking-in shared_secret changes
SM-Puppet-Upgrade: checking-in shared_secret changes

Partial-bug: #1573218

Currently we don't have a way to enable service_metadata_proxy without having
shared secret. So this change always enables service_metadata_proxy.

dgautam/contrail-puppet,dgautam/contrail-puppet,dgautam/contrail-puppet,dgautam/contrail-puppet,dgautam/contrail-puppet