Deploy Linux slave with AMD R7 240 to chromium.gpu.fyi.

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 map of buildbot master names -> buildbot builder names ->
   # config names (where each config name is a key in the 'configs' dict,
   # below). MB uses this dict to look up which config to use for a given bot.
   'masters': {
     'chromeos.chrome': {
@@ skipping 295 matching lines @@
       'GPU Win Clang Builder (dbg)':
         'swarming_gpu_fyi_tests_win_clang_debug_bot',
       'GPU Win x64 Builder':
         'swarming_gpu_tests_deqp_gles_gn_release_trybot_x64',
       'GPU Win x64 Builder (dbg)':
         'swarming_gpu_tests_deqp_gles_gn_debug_trybot_x64',
       'Linux ChromiumOS Builder':
         'swarming_gpu_fyi_tests_chromeos_gn_release_trybot',
       'Linux Debug (NVIDIA)': 'none',
       'Linux Debug (New Intel)': 'none',
+      'Linux Release (AMD R7 240)': 'none',
       'Linux Release (ATI)': 'none',
       'Linux Release (NVIDIA GeForce 730)': 'none',
       'Linux Release (NVIDIA)': 'none',
       'Linux Release (New Intel)': 'none',
       'Mac 10.10 Debug (ATI)': 'none',
       'Mac 10.10 Debug (Intel)': 'none',
       'Mac 10.10 Release (ATI)': 'none',
       'Mac 10.10 Release (Intel)': 'none',
       'Mac 10.10 Retina Debug (AMD)': 'none',
       'Mac 10.10 Retina Release (AMD)': 'none',
@@ skipping 2131 matching lines @@
     },
 
     'drfuzz': { 'gn_args': 'use_drfuzz=true' },
 
     'drmemory': {
       'gn_args': 'is_component_build=true enable_iterator_debugging=false',
       'gyp_defines': 'component=shared_library build_for_tool=drmemory',
     },
   },
 }