Updated openstack/openstack
Project: openstack/oslo.db  fb84de0828db118ee8a2f3311e37a58c5b7c8bc1

Adding dependency documentation for MySQL.

Merging change I347e1c235bc82d6e510761f4b1c3c3de62994c2f fixing pip
info.

Co-Authored-By: Gauvain Pocentek <gauvain.pocentek@objectif-libre.com>

Change-Id: I9a1b76ed261c69a92cc3e4e6b6100e43f98fea1e