labs: actually call MySQL in setup_openstackdb
labs: actually call MySQL in setup_openstackdb

The code in setup_openstackdb has been left in debug mode, which means
it just echoed the mysql commands rather than executing them.

This patches fixes that.

Change-Id: I261a65a9c0ff147803649aeb750f397826730934

openstack/training-labs,openstack/training-labs,dguitarbite/OpenStack-Labs,dguitarbite/OpenStack-Labs,dguitarbite/OpenStack-Labs,openstack/training-labs