udn, virt: enable primary UDN binding

This HCO feature gate was introduced in [0].

[0] - kubevirt/hyperconverged-cluster-operator#3034

Signed-off-by: Miguel Duarte Barroso <mdbarroso@redhat.com>

ci-operator/step-registry/kubevirt/install/kubevirt-install-commands.sh

@@ -148,6 +148,7 @@ metadata:
 spec:
   featureGates:
     enableCommonBootImageImport: false
+    primaryUserDefinedNetworkBinding: true
   logVerbosityConfig:
     kubevirt:
       virtLauncher: 8