Enable buildbucket integration for chromium.fyi builders.

R=chanli,nodir,bpastene

Bug: 1027762
Change-Id: I39a7ed5a098566e28bd4c13345c1e5a2495ad15b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2144462Reviewed-by: Ben Pastene <bpastene@chromium.org>
Commit-Queue: Roberto Carrillo <robertocn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#758300}

infra/config/lib/ci.star

@@ -509,6 +509,11 @@ def fyi_builder(
       execution_timeout = execution_timeout,
       goma_backend = goma_backend,
       mastername = 'chromium.fyi',
+      # TODO(crbug.com/1027762): Move this kwarg to ci.builder(), after this is
+      # shown to work as expected for fyi builders.
+      resultdb_settings = resultdb.settings(
+          enable = True,
+      ),
       **kwargs
   )