'make qemu share=<dir>' (or share="tag=dir ...") starts one virtiofsd per share and
adds the matching vhost-user-fs devices, so the guest sees /scheme/virtio-fsd.<tag>.
podman_bootstrap.sh installs virtiofsd, and the selftest recipe builds from the base source.
Signed-off-by: MJ Pooladkhay <mj@pooladkhay.com>