Description of problem:
Add support for configuring Root FeartureGate via HCO CR

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

How reproducible:

Steps to Reproduce:
1.$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -o yaml | grep -A 8 "featureGates"

2.
3.

Actual results:
featureGates:
deployKubeSecondaryDNS: false
deployTektonTaskResources: false
enableCommonBootImageImport: true
nonRoot: true

Expected results:
featureGates:
deployKubeSecondaryDNS: false
deployTektonTaskResources: false
enableCommonBootImageImport: true
Root: False

Additional info:
The default value for root is expected to be false