[Android] Update OWNERS information (autofill)

The Clank team is reviewing the ownership
of all `/android` directories and updating OWNERS
as part of an effort to normalize code health metrics
across different data sources.

https://docs.google.com/document/d/1aP5GMLwcKkdshT9YLS1dkeGAfNSNoLzdUfWvvt0qVLU

Bug: 1112872
Change-Id: I58cfb139d7692f67b80694c65946bb4537380e1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2368502
Auto-Submit: Fred Mello <fredmello@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Yaron Friedman <yfriedman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800610}

chrome/android/java/src/org/chromium/chrome/browser/autofill/OWNERS

-rouslan@chromium.org
-sebsg@chromium.org
+file://components/autofill/OWNERS
 
-# COMPONENT: UI>Browser>Autofill
+# COMPONENT: UI>Browser>Autofill>UI
+# OS: Android

chrome/browser/autofill/OWNERS

  file://components/autofill/OWNERS
-
-# COMPONENT: UI>Browser>Autofill

components/autofill/OWNERS

@@ -11,3 +11,4 @@ sebsg@chromium.org
 tmartino@chromium.org
 
 # COMPONENT: UI>Browser>Autofill
+# TEAM: chrome-autofill@google.com

components/autofill/android/OWNERS

-file://ui/android/OWNERS
-