Move OWNERS to src/chromeos/settings

src/chrome/browser/chromeos/settings OWNERS should also own
src/chromeos/settings, so now they do.

Moved the OWNERS file to chromeos/settings, and
c/b/chromeos/settings OWNERS inherits from there.

Bug: 446937
Change-Id: I72202017fa2c0c6fd3f4a322b8ea38dfb3bc6c04
Reviewed-on: https://chromium-review.googlesource.com/c/1264584
Commit-Queue: A Olsen <olsen@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597262}

chrome/browser/chromeos/settings/OWNERS

-mnissler@chromium.org
-bartfab@chromium.org
-pastarmovj@chromium.org
-stevenjb@chromium.org
+file://chromeos/settings/OWNERS
 
 # COMPONENT: Enterprise

chromeos/settings/OWNERS

+bartfab@chromium.org
+mnissler@chromium.org
+olsen@chromium.org
+pastarmovj@chromium.org
+stevenjb@chromium.org
+
+# COMPONENT: Enterprise