As part of the deprecation process for VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY, we should still support builds without errors when possible.
For legacy support, define VIRTIO_DRIVER_SUPPORT and VIRTIO_DEVICE_SUPPORT default values based on VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY.
As part of the deprecation process for VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY, we should still support builds without errors when possible. For legacy support, define VIRTIO_DRIVER_SUPPORT and VIRTIO_DEVICE_SUPPORT default values based on VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY.