Make the yasm copy target be type 'none' rather than type 'executable'

gyp/libjpeg-turbo.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.
 
 {
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
   'variables': {
     'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/externals/libjpeg-turbo',
     'conditions': [
       [ 'skia_os == "win"', {
         'object_suffix': 'obj',
       }, {
         'object_suffix': 'o',
       }],
     ],
   },
   'targets': [
     {
       'target_name': 'yasm-win',
-      'type': 'executable',
+      'type': 'none',
       'sources': [
         '../third_party/externals/yasm/binaries/win/yasm.exe',
       ],
       'copies' : [{
         'destination': '<(PRODUCT_DIR)',
         'files': [ '../third_party/externals/yasm/binaries/win/yasm.exe' ],
       }],
     },
     {
       'target_name': 'yasm-android',
-      'type': 'executable',
+      'type': 'none',
       'sources': [
         '../third_party/yasm/android/yasm-android',
       ],
       'copies' : [{
         'destination': '<(PRODUCT_DIR)',
         'files': [ '../third_party/yasm/android/yasm-android' ],
       }],
     },
     {
       'target_name': 'libjpeg-turbo',
@@ skipping 311 matching lines @@
               ],
               'process_outputs_as_sources': 1,
               'message': 'Building <(RULE_INPUT_ROOT).<(object_suffix)',
             }],
           ]
         },
       ],
     },
   ],
 }