tree ce7ee716811d69250f8ec4850c4019f41c4c3a41
parent c34f9b7372c7bfbe1b88e25574ec1ae5e42d02fa
author cao.yuan <cao.yuan@99cloud.net> 1551018359 +0800
committer jacky06 <zhang.min@99cloud.net> 1551628402 +0000

Update json module to jsonutils

oslo project provide jsonutils, and ironic-tempest-plugin use it
in many place[1], this PS to update the remained json moudule to
 oslo jsonutils for consistency.

[1]: https://github.com/openstack/ironic-tempest-plugin/search?utf8=%E2%9C%93&q=jsonutils&type=

Change-Id: I76daaca9e6de990949994915c9d6709de4a67f9b