$sections = array(
	'section-one' => array(
		'option-one',
		'option-two'
	),
	'section-two' => array(
		'option-one',
		'option-two'
	),
);

add_filter('whitelist_options', function($whitelist_options) use ($sections) {
	foreach($sections as $section => $fields) {
		foreach($fields as $field) {
			$whitelist_options[$section][] = $field;
		}
	}
	return $whitelist_options;
});