As noted in https://review.openstack.org/319438 , the /etc/apparmor.d/
directory was missing from the auditd rules applied for V-38541.
This is a manual backport of I564b72d103fa13af4562e4b21d68ef6097cecf37.
An clean cherry pick wasn't possible because of CentOS/SELinux changes
in the master/Newton branch that don't belong in mitaka and liberty.
Change-Id: Idf169538e3e155a9b9aa9119f65dc31428c9680c