Make CONFIG_VIRTIO_FS and CONFIG_FUSE_FS builtin modules
Description:
Having CONFIG_VIRTIO_FS
and CONFIG_FUSE_FS
as builtin modules would allow for booting directory images in qemu with virtiofs without needing an initramfs. This would allow for a much faster development workflow in systemd as we wouldn't need to build an initramfs by default anymore for our development images.