Migrate Linux64 Release (Libfuzzer) to use reclient

All CI builders on Linux with standlone.py recipe have already been migrated to reclient.
This is the only remaining Linux builder with libfuzzer.py recipe.

Test:
[pass] https://ci.chromium.org/swarming/task/5d4962978d596a10

Bug: b/239908030
Change-Id: I861ded5672f2296f61d42b1f4678cd5602d50030
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275061
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Junji Watanabe <jwata@google.com>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Takuto Ikuta <tikuta@google.com>
Cr-Commit-Position: refs/heads/main@{#38057}
diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index 80ea65e..a939a3b 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -74,7 +74,7 @@
       'Linux64 Debug (ARM)': 'debug_bot_arm64',
       'Linux64 Release': 'release_bot_x64_reclient',
       'Linux64 Release (ARM)': 'release_bot_arm64',
-      'Linux64 Release (Libfuzzer)': 'libfuzzer_asan_release_bot_x64',
+      'Linux64 Release (Libfuzzer)': 'libfuzzer_asan_release_bot_x64_reclient',
       'Linux64 Release (reclient)': 'release_bot_x64_reclient',
 
       # Mac
@@ -292,6 +292,10 @@
       'libfuzzer', 'asan', 'optimize_for_fuzzing', 'openh264',
       'pure_release_bot', 'x64'
     ],
+    'libfuzzer_asan_release_bot_x64_reclient': [
+      'libfuzzer', 'asan', 'optimize_for_fuzzing', 'openh264',
+      'pure_release_bot_reclient', 'x64'
+    ],
     'mac_asan_clang_release_bot_x64': [
       'asan',
       'clang',