Updated openstack/openstack
Project: openstack-dev/devstack  84744d8e38b9c729d4d9aef3638aefbab707ac37

Adds support for Hyper-V image formats

Adds support for VHD and VHDX image formats, including gz compression.

Change-Id: I9b143c9883b947397b435a671f13703f78019d23
Closes-bug: #1353726