SNO vDU post install configurations

[Noreen21]

Currently SNO vDU pre-install and certain post install configs (such as performance profile and tunedpatch application) are supported by Jetlag. For complete DU configuration, we require the installation of the following additional operators and their config CRs to be applied thereafter (based on certain input vars):

1. PTP Operator (with ptpConfigSlave and ptpOperatorConfigForEvent configs)
2. Sriov Operator
3. Local Storage Operator
4. Cluster Logging Operator
5. Sriov-fec Operator

The operator install procedure is fairly consistent across releases however, the config afterwards may vary between releases.
Details can be found here:
https://docs.openshift.com/container-platform/4.15/scalability_and_performance/ztp_far_edge/ztp-reference-cluster-configuration-for-vdu.html#ztp-sno-post-install-time-cluster-config

Source of truth for all DU config CRs:
https://github.com/openshift-kni/cnf-features-deploy/tree/release-4.15/ztp/source-crs

[Noreen21]

Additional enhancements to consider:
No need to set separate vars setup_bastion_registry, use_bastion_registry (disconnected ipv6 setup) and sno_localstorage_configuration when du_profile is enabled. They should be all be enabled in this case.