In dev-scripts the ability to "spoof" the VM manufacturer to simulate a VMWare host should be allowed in order to test installations for VSphere platform. Currently the assisted-installer validations will prevent progress on the installation if the manufacturer is not "VMware, Inc.". Currently the install detects that no hosts support VSphere here https://github.com/openshift/assisted-service/blob/master/internal/provider/vsphere/base.go#L38 and the installation will not proceed.

This will be similar to the work done for OCI to set the manufacturer to "Oracle"https://github.com/openshift-metal3/dev-scripts/pull/1576