lxd/instance/drivers/driver/qemu: Switch to using device.DiskVMVirtiofsdStart and device.DiskVMVirtiofsdStop for config drive virtiofsd management
lxd/instance/drivers/driver/qemu: Switch to using device.DiskVMVirtiofsdStart and device.DiskVMVirtiofsdStop for config drive virtiofsd management

Signed-off-by: Thomas Parrott <6b778ce645fb0e3dde76d79eccad490955b1ae74@canonical.com>

hallyn/lxd,hallyn/lxd,lxc/lxd,atxwebs/lxd,stgraber/lxd,lxc/lxd,stgraber/lxd,atxwebs/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,atxwebs/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd,hallyn/lxd,stgraber/lxd,atxwebs/lxd,lxc/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,hallyn/lxd,lxc/lxd