Add an eventual consistency call for deploy.deployment_server_init

In case the salt master fails to call deploy.deployment_server_init
make puppet call the function on every puppet run. This call will
simply bring repositories into a consistent configuration on the
deployment server and won't modify their repository state, so it's
safe to run this on every puppet run.

Change-Id: Iab6367f9d6e4fd0c7a2043d6c2dbf681b017744e