Updated openstack/openstack
Project: openstack/oslo.messaging  4b1fcd36220e5e5582d602d746c1466227c1dd80

Fix incorrect attribute name in matchmaker_redis

Pass the correct base class attribute name for host topic to
self.register and fix the AttributeError.

Change-Id: Idfe94dd37cdba9f498f79cf87d4fff81e7c4249b
Closes-Bug: #1246308