qa: use allowlist instead of whitelist for selinux denials

qa: use allowlist instead of whitelist for selinux denials

https://github.com/ceph/teuthology/pull/1757 introduced this change,
however, qa/distros continued to use `whitelist' keyword.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit 71c9fe55d6a4ba3dbff166c155cc74d485f75330)

 Conflicts:
	qa/distros/container-hosts/centos_9.stream.yaml
	qa/distros/container-hosts/centos_9.stream_runc.yaml
	qa/distros/podman/centos_9.stream.yaml

Adjust for missing centos_9[.stream] distros and other distros
which are present for release.