[MIPS] Add support to gyp files to build Native Client inside of Chromium

tests.gyp

 # Copyright (c) 2011 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.
 
 {
   ######################################################################
   'includes': [
     'build/common.gypi',
   ],
   ######################################################################
@@ skipping 39 matching lines @@
         'build_glibc': 0,
         'build_newlib': 1,
         'build_pnacl_newlib': 0,
       },
       'sources': [
         'tests/threads/simple_thread_test.c',
       ],
     },
   ],
   'conditions': [
-    ['target_arch!="arm"', {
+    ['target_arch!="arm" and target_arch!="mipsel"', {
       'targets': [
-        # Only build the tests on arm, but don't try to run them
+        # Only build the tests on arm and mips, but don't try to run them
         {
           'target_name': 'test_hello_world_nexe',
           'type': 'none',
           'dependencies': [
             'hello_world_nexe',
             'src/trusted/service_runtime/service_runtime.gyp:sel_ldr',
           ],
           'variables': {
             'arch': '--arch=<(target_arch)',
             'name': '--name=hello_world',
@@ skipping 91 matching lines @@
                 '<(path)/hack',
                 '<(tools)'
               ],
             },
           ],
         },
       ],
     }],
   ],
 }