This patch skips the `find` task that searches for unlabeled content on
systems with SELinux disabled. This fails because labels aren't loaded at that
time.
The patch also fixed an idempotent test failure that comes from the `selinux`
Ansible module repeatedly trying to get SELinux into enforcing mode when it
is disabled.
Closes-bug: 1649617
Change-Id: I7d30a07bd7e8a4461846660c281b9e53b0783461
3e908d3d7b