Description of problem:

When deploying with assisted installer, the `masters-chrony-configuration` and `workers-chrony-configuration` MachineConfig are created. These artifact do not have an index number hence the alphanumeric sort put them at the end of the rendered manifest preventing documented customization (https://docs.openshift.com/container-platform/4.7/post_installation_configuration/machine-configuration-tasks.html#installation-sp[…]iguration-tasks) from working.

As per discussion with engineering, the code is this:

https://github.com/openshift/assisted-service/blob/6c8d2aaef8599c4f4729cca4d6e016c7af2dfe2f/internal/network/manifests_generator.go#L184 

A similar caveat happens with the tunnel offload manifest generated by the same code