Add MB config for Fuchsia FYI bot

tools/mb/mb_config.pyl

 # Copyright 2015 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 is a .pyl, or "Python Literal", file. You can treat it just like a
 # .json file, with the following exceptions:
 # * all keys must be quoted (use single quotes, please);
 # * comments are allowed, using '#' syntax; and
 # * trailing commas are allowed.
 
@@ skipping 159 matching lines @@
       'CrWinAsan': 'asan_clang_fuzzer_static_v8_heap_x86_full_symbols_release',
       'CrWinAsan(dll)': 'asan_clang_shared_v8_heap_x86_full_symbols_release',
       'CrWinAsanCov': 'asan_clang_edge_fuzzer_static_v8_heap_x86_full_symbols_release',
       'CrWinClang(shared)': 'clang_minimal_symbols_shared_release_bot_x86',
       'CrWinClang64(dbg)': 'win_clang_debug_bot',
       'CrWinClangLLD': 'clang_tot_official_static_use_lld_x86',
       'CrWinClangLLD64': 'clang_tot_shared_release_use_lld',
       'CrWinClngLLD64dbg': 'clang_tot_full_symbols_shared_debug_use_lld',
       'CrWinClngLLDdbg': 'clang_tot_full_symbols_shared_debug_use_lld_x86',
       'EarlGreyiOS': 'ios',
+      'Fuchsia': 'release_bot_fuchsia',
       'GomaCanaryiOS': 'ios',
       'ios-simulator': 'ios',
       'Headless Linux (dbg)': 'headless_linux_debug_bot',
       'MD Top Chrome ChromeOS material-hybrid': 'chromeos_with_codecs_debug_bot',
       'MD Top Chrome ChromeOS non-material': 'chromeos_with_codecs_debug_bot',
       'MD Top Chrome Win material': 'debug_bot',
       'MD Top Chrome Linux material': 'debug_bot',
       'LTO Linux': 'official_goma_thin_lto_use_lld',
       'LTO Linux Perf': 'official_goma_thin_lto_use_lld',
       'Libfuzzer Upload Linux ASan': 'release_libfuzzer_asan',
@@ skipping 1170 matching lines @@
     ],
 
     'official_six_concurrent_links': [
       'official', 'six_concurrent_links',
     ],
 
     'release_bot_ozone_linux': [
       'release_bot', 'ozone', 'ozone_linux',
     ],
 
+    'release_bot_fuchsia': [
+      'release_bot', 'fuchsia',
+    ],
+
     'ozone_linux_release_trybot': [
       'release_trybot', 'ozone', 'ozone_linux',
     ],
 
     'release_afl_asan': [
       'release', 'afl', 'asan', 'chromeos_codecs', 'pdf_xfa', 'disable_nacl',
     ],
 
     'release_bot': [
       'release_bot',
@@ skipping 420 matching lines @@
     },
 
     'ozone_linux': {
       'gn_args': ('ozone_auto_platforms=false ozone_platform_wayland=true '
                   'ozone_platform="x11" '
                   'ozone_platform_x11=true ozone_platform_gbm=true '
                   'enable_package_mash_services=true use_ash=false '
                   'use_xkbcommon=true'),
     },
 
+    'fuchsia': {
+      'gn_args': 'target_os="fuchsia"',
+    },
+
     'pdf_xfa': {
       'gn_args': 'pdf_enable_xfa=true',
     },
 
     # Note: This is probably not what you want to use. Instead use one of the
     # chrome_with_codecs or chromeos_with_codecs mixins.
     'proprietary_codecs': {
       'gn_args': 'proprietary_codecs=true',
     },
 
@@ skipping 82 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }