Support add mdev to vm

Apps and Virtualization
,
1

such as gvt-g; I can add use to create mdev but can not add to vm

Blockquote
mdevctl define --uuid f076b7c0-9729-45d8-ab22-5b7412e5a067
–parent 0000:00:02.0
–type i915-GVTg_V5_8
–auto

mdevctl start --uuid f076b7c0-9729-45d8-ab22-5b7412e5a067