Highlight tag change policy for OpenShift Virtualization, when using OCP4.19 and later versions #322
Description
The change made in PR 486 highlights how rhcos-4.Y became rhel-9.6 from OCP 4.19.
See Installation and Upgrade Overview on OpenShift section docs:
The driver container image tag for OpenShift has changed after the OCP 4.19 release.
Before OCP 4.19: The driver image tag is formed with the suffix -rhcos4.17 (such as with OCP 4.17).
Starting OCP 4.19 and later: The driver image tag is formed with the suffix -rhel9.6 (such as with OCP 4.19).
Refer to [OpenShift Container Platform 4.19 Release Notes section 1.4.5](https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/ocp-4-19-release-notes#ocp-4-19-rhcos-split-layers_release-notes), [RHEL Versions Utilized by RHEL CoreOS and OCP](https://access.redhat.com/articles/6907891), and [Split RHCOS into layers: /etc/os-release](https://github.com/openshift/enhancements/blob/master/enhancements/rhcos/split-rhcos-into-layers.md#etcos-release) for more information.
I believe having the above in the NVIDIA GPU Operator with OpenShift Virtualization section as well, might help experienced users and customers, to notice the tag change, and avoid issues on new install or updates.