Extend the HyperConverged Operator (HCO) to manage and expose the VideoConfig feature introduced in KubeVirt.

This enhancement ensures that the feature gate controlling video device configuration is properly surfaced and managed through the HCO, maintaining a consistent user experience across CNV deployments.

Implementation Scope:

• Introduce the VideoConfig feature gate in the HCO CR (HyperConverged resource).

• Ensure the feature gate is propagated to the KubeVirt CR during reconciliation.

• Update the HCO feature-gates map and default configuration logic.

• Add validation to ensure compatibility with the target KubeVirt version that supports the VideoConfig feature.

• Update HCO unit and functional tests to cover enabling and disabling the VideoConfig feature gate.

• Provide release notes and documentation updates reflecting this new capability.