Description of problem:
A small error in `roles/ceph-infra/tasks/setup_ntp.yml` ends up disabling chronyd via a handler.
I've fixed the obvious error in an PR for ceph-ansible master branch.
This bug created to ensure we back-port or otherwise deal with this bug in the RHCS 3.2 stream.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. set `ntp_service_enabled: true` in `all.yml`
2. set `ntp_daemon_type: chronyd` in `all.yml`
3. `ansible-playbook site.yml`
chronyd gets installed, enabled, started and then immediately disabled (via a handler).
chronyd.service enabled and running when playbook finished
I havce verified that the change I sugegst in the PR does lead to the result I want.
 PR is at https://github.com/ceph/ceph-ansible/pull/3583