Add none type

install/sql/incremental/upd_dev_collection.sql

-ALTER TABLE `sys_user` ADD `otp_type` SET('email') NOT NULL DEFAULT 'email' AFTER `otp_enabled`, ADD `otp_data` VARCHAR(255) NULL AFTER `otp_type`, ADD `otp_recovery` VARCHAR(64) NULL AFTER `otp_data`, ADD `otp_attempts` TINYINT NOT NULL DEFAULT '0' AFTER `otp_recovery`;
+ALTER TABLE `sys_user` ADD `otp_type` SET('none', 'email') NOT NULL DEFAULT 'none' AFTER `otp_enabled`, ADD `otp_data` VARCHAR(255) NULL AFTER `otp_type`, ADD `otp_recovery` VARCHAR(64) NULL AFTER `otp_data`, ADD `otp_attempts` TINYINT NOT NULL DEFAULT '0' AFTER `otp_recovery`;

install/sql/ispconfig3.sql

@@ -1842,7 +1842,7 @@ CREATE TABLE `sys_user` (
   `lost_password_function` tinyint(1) NOT NULL default '1',
   `lost_password_hash` VARCHAR(50) NOT NULL default '',
   `lost_password_reqtime` DATETIME NULL default NULL,
-  `otp_type` set('email') NOT NULL DEFAULT 'email',
+  `otp_type` set('none', 'email') NOT NULL DEFAULT 'none',
   `otp_data` varchar(255) DEFAULT NULL,
   `otp_recovery` varchar(64) DEFAULT NULL,
   `otp_attempts` tinyint(4) NOT NULL DEFAULT 0,