Updated openstack/openstack
Project: openstack/oslo.config  70c5b67df353f70f0253dd7b8bcc66c871f842ff

Move files out of the namespace package

Move the public API out of oslo.config to oslo_config. Retain the ability
to import from the old namespace package for backwards compatibility
for this release cycle.

bp/drop-namespace-packages

Change-Id: I56274336802036de050efc62eb2ee6b5d4ede77b