Description of problem (please be detailed as possible and provide log
snippests):
=======================================================================


In OCS 4.2 GA documentation, only OCP 4.2 is mentioned in Software Requirement for OCS. But with OCP 4.3 also GA'd, it would be better to add support instruction for OCS 4.2 on OCP 4.3 as well. If not present, it would mislead customers on OCP 4.3 to not use OCS 4.2 on top of it.

E.g

1. Planning Guide: https://access.redhat.com/documentation/en-us/red_hat_openshift_container_storage/4.2/html-single/planning_your_deployment/index

Chapter 7. Software requirements
Red Hat OpenShift Container Storage 4.2 is compatible only with the latest Red Hat OpenShift Container Platform 4.2 versions.

>> OCS 4.2 is complatible with latest builds of both OCP 4.2 and OCP 4.3. Hence we need to add the change in above statement


2. Deployment Guide: https://access.redhat.com/documentation/en-us/red_hat_openshift_container_storage/4.2/html-single/deploying_openshift_container_storage/index

1.1.1. Installing Red Hat OpenShift Container Storage Operator using the Operator Hub

You must have a latest OpenShift Container Platform 4.2 cluster.

>> We can have either OCP 4.2 or OCP 4.3 cluster for installing OCS 4.2 


Similar changes are required in all the GA's docs, wherever we are mentioning only OCP 4.2 as supported platform for OCS  4.2

Version of all relevant components (if applicable):
=======================================================================
OCS 4.2


It would be good to have these changes made to existing GA doc.


Additional Info:
====================

One more Related BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1782846