Escape generated password in mobileconfig

Escape ampersand, less than, greater than to avoid generating invalid XML.

Fixes #7171

data/web/inc/init_db.inc.php

@@ -1464,8 +1464,6 @@ function init_db_schema()
         "pop3_access" => intval($GLOBALS['MAILBOX_DEFAULT_ATTRIBUTES']['pop3_access']),
         "smtp_access" => intval($GLOBALS['MAILBOX_DEFAULT_ATTRIBUTES']['smtp_access']),
         "sieve_access" => intval($GLOBALS['MAILBOX_DEFAULT_ATTRIBUTES']['sieve_access']),
-        "eas_access" => intval($GLOBALS['MAILBOX_DEFAULT_ATTRIBUTES']['eas_access']),
-        "dav_access" => intval($GLOBALS['MAILBOX_DEFAULT_ATTRIBUTES']['dav_access']),
         "acl_spam_alias" => 1,
         "acl_tls_policy" => 1,
         "acl_spam_score" => 1,

data/web/mobileconfig.php

@@ -65,6 +65,7 @@ if (isset($_GET['app_password'])) {
       $attr['protocols'][] = 'dav_access';
   }
   app_passwd("add", $attr);
+  $password = htmlspecialchars($password, ENT_NOQUOTES);
 } else {
   $app_password = false;
 }