ipatests: Add nightly definitions for enforcing mode
Duplicates the scenario for nightly_latest.yaml and
nightly_latest_testing.yaml setting `selinux_enforcing` parameter
as True.
Indentation for all definitions have been fixed.
Issue: https://github.com/freeipa/freeipa-pr-ci/issues/391
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>