Extend ldappasswd_sysaccount_change() helper to allow changing passwords as a cn=Directory Manager. Related to: https://pagure.io/freeipa/issue/7181 Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Christian Heimes <cheimes@redhat.com>