Add host prep step for ntp time sync
Add host prep step for ntp time sync

Docker doesn't like it when the time shifts so if we're building
containers when the ntp time sync actually occurs it can lead to
deployment failures. To prevent this, let's force a ntpdate on the host
during step1 to ensure the hardware time is properly synced before
proceeding.

Change-Id: I812c7da90ae06120707fd8795a41e4fd867f510e
Closes-Bug: #1776869

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,dprince/tripleo-heat-templates