Updated openstack/openstack
Project: openstack/cinder  dbb0e56063bdef15a813a29574e2b47798788c31

Fixes cinder volume create on Windows Server 2012 R2

Windows Server 2012 R2 does not support vhd images as iSCSI disks,
requiring VHDX images. For this reason, the cinder driver fails to
create volumes. For the moment, the default format is vhd.
On WSS 2012 R2, we should use vhdx images as default.

This patch introduces vhd/vhdx related methods for both v1 and v2
wmi virtualization namespaces.

Closes-Bug: #1299150
Change-Id: I272988dc5b0e3b8129c5e4d3c79bea1c292701c8