Sync puppet module ntp to v3.1.1 from upstream

v3.1.1 sha1: d5c648d42ad287150206f11692816eba7c73a2b0
Implements: blueprint merge-openstack-puppet-modules

Change-Id: I0ceb392d8750469ece3c93d67d2c73a8a6d7b71d
Merge "Sync puppet module ntp to v3.1.1 from upstream"