Add debug information for TestMinBwQoSOvs
Add debug information for TestMinBwQoSOvs

In case QoS rule is not applied correctly, the list of OVS QoS and
queue registers will be printed in the log.

Change-Id: Ie77f70652af54d1d6bccb3c93a70f39e37f840a1
Related-Bug: #1909234

openstack/neutron,openstack/neutron,openstack/neutron,mahak/neutron,mahak/neutron,mahak/neutron