The session directory /etc/httpd/alias/ could be created with the wrong
SELinux context. Therefore httpd was not able to write to this directory.
Fixes: https://pagure.io/freeipa/issue/7662
Related-to: 49b4a057f1 (Create missing
/etc/httpd/alias for ipasession.key)
Reviewed-By: Christian Heimes <cheimes@redhat.com>