Ignore Critical Warnings for Clock Control Conflicts

Allow operation but block system clock updates when an uncontrollable chronyd service is running, except when this condition holds at startup. This is improved behavior when the conflict is transient. It is, however, recommended in such situations to configure sfptpd explicitly to treat the system clock as read only. To disable this check at startup, configure as follows:

[general]
ignore_critical clock-control-conflict

See the ignore_critical option in Configuration Options.