[Feed][Zine] Ownership updates

This updates ownership:
* Adds fgorski and pnoland to NTP code
* Adds pnoland to Feed

Change-Id: Ie9f6ac87c6e14aa051c457b7c5c2a8a2987db5da
Reviewed-on: https://chromium-review.googlesource.com/967881Reviewed-by: Marc Treib <treib@chromium.org>
Reviewed-by: Patrick Noland <pnoland@google.com>
Commit-Queue: Filip Gorski <fgorski@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544085}

chrome/browser/android/ntp/OWNERS

 file://chrome/android/java/src/org/chromium/chrome/browser/ntp/OWNERS
 bauerb@chromium.org
+fgorski@chromium.org
 markusheintz@chromium.org
+pnoland@chromium.org
 treib@chromium.org

components/feed/OWNERS

 fgorski@chromium.org
 pavely@chromium.org
+pnoland@chromium.org
 zea@chromium.org
 
 # Team: chrome-jardin-team@google.com

components/ntp_snippets/OWNERS

 bauerb@chromium.org
+fgorski@chrmoium.org
 jkrcal@chromium.org
+pnoland@chromium.org
 treib@chromium.org
 tschumann@chromium.org