[New Tab] Add ramyan@ to local_ntp and components/search OWNERS.

Bug: none
Change-Id: Ieefde51da92fd4f896007c07ee45321423360e83
Reviewed-on: https://chromium-review.googlesource.com/1241938Reviewed-by: Kristi Park <kristipark@chromium.org>
Commit-Queue: Ramya Nagarajan <ramyan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593798}

chrome/browser/resources/local_ntp/OWNERS

-mathp@chromium.org
 fserb@chromium.org
 kristipark@chromium.org
+mathp@chromium.org
+ramyan@chromium.org
 treib@chromium.org
 
 # TEAM: ntp-dev@chromium.org

components/search/OWNERS

 kristipark@chromium.org
 mathp@chromium.org
+ramyan@chromium.org
 sfiera@chromium.org
 treib@chromium.org