Hook_form_alter help for sintax

according to data entered, show an asterisk for required data form "description" on the fly, before submit the content. (The asterisk is only graphic)

my code works if the two inputs have occurred both (AND), i need that are OR

now is: field_taxonomy AND field_boolean is TRUE -> show asteriks
I need: field_taxonomy AND/OR field_boolean is TRUE -> show asteriks

function rso_modulo_form_alter (&$form, &$form_state, $form_id) {
$form['field_descrizione']['#states'] = array(
'required' => array(
array(':input[name="field_taxonomy[und][0][tid]"]' => array(array('value' => '197'),
array('value' => '215')),
array(':input[name="field_boolean[und]"]' => array('value' => 1))),
),);}