Updated openstack/openstack
Project: openstack/nova  e6c6d2947917ea2a88d42b2b1e8ebffd6cab14fb

Break out quota usage refresh code from quota_reserve()

This moves the logic out of the refresh block into a private method.

This is part of a larger series to refactor the quota_reserve method.

Partial-Bug: #1369605

Change-Id: I3cbff688c7079c112ebd4551f9b30ba2be96c98c