V8: Add s390 bots.

masters/master.client.v8.ports/mail_notifier_cfg.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from master.v8.v8_notifier import V8Notifier
 
 
 def Update(config, active_master, c):
   c['status'].extend([
     V8Notifier(
         config,
         active_master,
         categories_steps={
+          's390': ['runhooks', 'compile', 'Check'],
+        },
+        extraRecipients=[
+          'joransiu@ca.ibm.com',
+          'jyan@ca.ibm.com',
+          'michael_dawson@ca.ibm.com',
+        ],
+    ),
+    V8Notifier(
+        config,
+        active_master,
+        categories_steps={
           'x87': ['runhooks', 'compile', 'Check'],
         },
         extraRecipients=[
           'weiliang.lin@intel.com',
           'chunyang.dai@intel.com',
           'zhengxing.li@intel.com',
         ],
     ),
   ])