[Android] Reallow broad reviewers for ChromeFeatureList changes

These files used to be reviewable by * until a change in the path
expressions config: b/193677755 and crbug.com/1228864

Change-Id: Iddb35aa4fbfffb615b7208ec5e949b116878ad6f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3046759


Auto-Submit: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Kyle Milka <kmilka@chromium.org>
Reviewed-by: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#908683}