vfe-0.7

What's Changed

• vhost: fix remove vf reconnect crash by @yajwu in #36
• vdpa/virtio: Fix virtio_vdpa_virtq_doorbell_relay_disable crash by @yajwu in #38
• vhost: support presetup by @yajwu in #37

Full Changelog: vfe-0.6...vfe-0.7