Merge "Adds support for configuring chrony"

ansible/group_vars/all/kolla

ansible/group_vars/all/time

ansible/roles/ntp/defaults/main.yml

ansible/roles/ntp/tasks/deploy.yml

ansible/roles/ntp/tasks/main.yml

ansible/roles/ntp/tasks/prepare.yml

ansible/roles/ntp/tasks/validate.yml

ansible/time.yml

ansible/timezone.yml

doc/source/configuration/reference/hosts.rst

etc/kayobe/inventory/groups

etc/kayobe/time.yml

kayobe/cli/commands.py

kayobe/tests/unit/cli/test_commands.py

...oks/kayobe-overcloud-host-configure-base/overrides.yml.j2

...ost-configure-base/tests/test_overcloud_host_configure.py

...es/notes/install-chrony-on-the-host-283fa6fdd9cf9b4c.yaml

requirements.yml