
This commit fixes breaking change [0]. Long driver names like 'nova.virt.libvirt.libvirtDriver' are no longer available and 'libvirt.libvirtDriver' should be used instead. Reference: [0] https://review.openstack.org/309504 Change-Id: I27a1b75b921c7401bc8614caadfd1e09e7dd5d65 Closes-Bug: 1574990