qemu: use govmm vhost user device types directly

For one thing, we should not make kata's internal device type
exactly as govmm string by string.

For another thing, latest govmm changes the device driver strings
and it breaks kata in such a way but the fault is on kata side IMHO.

Signed-off-by: Peng Tao <bergwolf@hyper.sh>

virtcontainers/qemu_arch_base.go

@@ -624,16 +624,19 @@ func (q *qemuArchBase) appendVhostUserDevice(devices []govmmQemu.Device, attr co
 	case config.VhostUserNet:
 		qemuVhostUserDevice.TypeDevID = utils.MakeNameID("net", attr.DevID, maxDevIDSize)
 		qemuVhostUserDevice.Address = attr.MacAddress
+		qemuVhostUserDevice.VhostUserType = govmmQemu.VhostUserNet
 	case config.VhostUserSCSI:
 		qemuVhostUserDevice.TypeDevID = utils.MakeNameID("scsi", attr.DevID, maxDevIDSize)
+		qemuVhostUserDevice.VhostUserType = govmmQemu.VhostUserSCSI
 	case config.VhostUserBlk:
+		qemuVhostUserDevice.VhostUserType = govmmQemu.VhostUserBlk
 	case config.VhostUserFS:
 		qemuVhostUserDevice.TypeDevID = utils.MakeNameID("fs", attr.DevID, maxDevIDSize)
 		qemuVhostUserDevice.Tag = attr.Tag
 		qemuVhostUserDevice.CacheSize = attr.CacheSize
+		qemuVhostUserDevice.VhostUserType = govmmQemu.VhostUserFS
 	}
 
-	qemuVhostUserDevice.VhostUserType = govmmQemu.DeviceDriver(attr.Type)
 	qemuVhostUserDevice.SocketPath = attr.SocketPath
 	qemuVhostUserDevice.CharDevID = utils.MakeNameID("char", attr.DevID, maxDevIDSize)