[MIPS64] Add build support for MIPS64 in libjpeg_turbo.

libjpeg.gyp

 # Copyright (c) 2012 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.
 
 {
   # This file is not used when use_system_libjpeg==1. Settings for building with
   # the system libjpeg is in third_party/libjpeg/libjpeg.gyp.
   'variables': {
     'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/libjpeg_turbo',
     'conditions': [
@@ skipping 168 matching lines @@
               ],
             }]
           ],
         }],
         [ 'target_arch=="arm64"', {
           'sources': [
             'simd/jsimd_arm64.c',
             'simd/jsimd_arm64_neon.S',
           ],
         }],
-        [ 'target_arch=="mipsel"', {
+        [ 'target_arch=="mipsel" or target_arch=="mips64el"', {
           'sources': [
             'jsimd_none.c',
           ],
         }],
 
         # Build rules for an asm file.
         # On Windows, we use the precompiled yasm binary. On Linux, we build
         # our patched yasm and use it except when use_system_yasm is 1. On
         # Mac, we always build our patched yasm and use it because of
         # <http://www.tortall.net/projects/yasm/ticket/236>.
@@ skipping 108 matching lines @@
       ],
     },
   ],
 }
 
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