Update from https://crrev.com/312398

third_party/boringssl/boringssl.gyp

 # Copyright 2014 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.
 
 {
   'targets': [
     {
       'target_name': 'boringssl',
       'type': '<(component)',
       'includes': [
@@ skipping 11 matching lines @@
       'msvs_disabled_warnings': [ 4267, ],
       'conditions': [
         ['component == "shared_library"', {
           'defines': [
             'BORINGSSL_SHARED_LIBRARY',
           ],
         }],
         ['target_arch == "arm"', {
           'sources': [ '<@(boringssl_linux_arm_sources)' ],
         }],
+        ['target_arch == "arm64"', {
+          'sources': [ '<@(boringssl_linux_aarch64_sources)' ],
+        }],
         ['target_arch == "ia32"', {
           'conditions': [
             ['OS == "mac"', {
               'sources': [ '<@(boringssl_mac_x86_sources)' ],
             }],
             ['OS == "linux" or OS == "android"', {
               'sources': [ '<@(boringssl_linux_x86_sources)' ],
             }],
             ['OS == "win"', {
               'sources': [ '<@(boringssl_win_x86_sources)' ],
@@ skipping 28 matching lines @@
               },
               'includes': [
                 '../yasm/yasm_compile.gypi',
               ],
             }],
             ['OS != "mac" and OS != "linux" and OS != "win" and OS != "android"', {
               'defines': [ 'OPENSSL_NO_ASM' ],
             }],
           ]
         }],
-        ['target_arch != "arm" and target_arch != "ia32" and target_arch != "x64"', {
+        ['target_arch != "arm" and target_arch != "ia32" and target_arch != "x64" and target_arch != "arm64"', {
           'defines': [ 'OPENSSL_NO_ASM' ],
         }],
       ],
       'include_dirs': [
         'src/include',
         # This is for arm_arch.h, which is needed by some asm files. Since the
         # asm files are generated and kept in a different directory, they
         # cannot use relative paths to find this file.
         'src/crypto',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           'src/include',
         ],
         'conditions': [
           ['component == "shared_library"', {
             'defines': [
               'BORINGSSL_SHARED_LIBRARY',
             ],
           }],
         ],
       },
     },
   ],
 }