Description of problem:
https://github.com/theforeman/foreman/blob/develop/app/views/unattended/provisioning_templates/snippet/ntp.erb#L21

Version-Release number of selected component (if applicable):
Satellite 6.14/6.13

How reproducible:
Always

Steps to Reproduce:
1. Try to provision a host with use-ntp param

Actual results:
use-ntp will install ntpdate package which isn't available

Expected results:
use-ntp should use chrony suite to configure ntp,

Additional info:
https://access.redhat.com/solutions/4130881

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_basic_system_settings/using-chrony-to-configure-ntp_configuring-basic-system-settings#doc-wrapper