Updated openstack/openstack
Project: openstack/nova  e6479464f05b05d8d7e89e855c2486eaabbdb463

Adds tests for Hyper-V Volume utils

Adds unit tests for Hyper-V BaseVolumeUtils,
VolumeUtils and VolumeUtilsV2 classes.

Co-Authored-By: Mouhammad-Nashwan Azhari <nmouhammad@cloudbasesolutions.com>

Partial-Bug: #1220256

Change-Id: I2792e0c08d2602f3c2690d44b632c2e932a94115