newdevice: Added CPU detection for Zyxel GS2200-24 (#5218)

includes/discovery/processors/zyxel.inc.php

@@ -0,0 +1,23 @@
+<?php
+/*
+ * LibreNMS
+ *
+ * Copyright (c) 2016 Søren Friis Rosiak <sorenrosiak@gmail.com> 
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.  Please see LICENSE.txt at the top level of
+ * the source code distribution for details.
+ */
+
+if ($device['os'] == 'zyxel') {
+    echo 'Zyxel : ';
+
+    $oid = '.1.3.6.1.4.1.890.1.5.8.55.12.7.0';
+    $descr = 'Processor';
+    $usage = snmp_get($device, $oid, '-Ovqn');
+
+    if (is_numeric($usage)) {
+        discover_processor($valid['processor'], $device, $oid, '0', 'zyxel', $descr, '1', $usage);
+    }
+}