This bug was initially created as a copy of Bug #2184439

I am copying this bug because:

Description of problem:

We need to Introduce a new feature gate DisableMDEVConfiguration at HCO CR level.

https://github.com/kubevirt/hyperconverged-cluster-operator/blob/main/api/v1beta1/hyperconverged_types.go#L295

]$ oc annotate --overwrite -n openshift-cnv hyperconverged kubevirt-hyperconverged kubevirt.kubevirt.io/jsonpatch='[

{ "op": "add", "path": "/spec/configuration/developerConfiguration/featureGates/-", "value": "DisableMDEVConfiguration" }

]'

Version-Release number of selected component (if applicable):
CNV 4.13

How reproducible:
Always

Steps to Reproduce:
1.
2.
3.

Actual results:
No way to configure "DisableMDEVConfiguration" FeatureGate

Expected results:
Need tunable featureGate to configure DisableMDEVConfiguration via HCO CR

Additional info:

Jira Issue for 4.14: https://issues.redhat.com/browse/CNV-27645