access_level: Fix logical bug of access control for private option and some tests..

(ActionItem 2852)

Signed-off-by: Carlos Andre <carlos.andre.souza@msn.com>
Signed-off-by: Fabio Teixeira <fabio1079@gmail.com>
Signed-off-by: Arthur Del Esposte <arthurmde@gmail.com>
Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>