SettingsSplit: Give CrOS settings OWNERShip to CrOS customiztion team

Bug: 987786
Change-Id: I6d2fd6049c2fd24d8de3a80311875ce533085b99
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1719450Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: James Cook <jamescook@chromium.org>
Reviewed-by: May Lippert <maybelle@chromium.org>
Commit-Queue: Jordy Greenblatt <jordynass@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681435}

chrome/browser/resources/settings/OWNERS

@@ -6,4 +6,7 @@ michaelpg@chromium.org
 stevenjb@chromium.org
 tommycli@chromium.org
 
+# Chrome OS Settings
+per-file *os_settings*=file://chrome/browser/resources/settings/chromeos/OWNERS
+
 # COMPONENT: UI>Settings

chrome/browser/resources/settings/chromeos/OWNERS

+maybelle@chromium.org
+jamescook@chromium.org
+
+# COMPONENT: OS>Systems>Settings