feedback: Add self to OWNERS

We're responsible for the feedback component, so we should own it.

R=jkardatzke@chromium.org

Bug: None
Change-Id: I37bd77b513032927976a2b58cfd753b5428ad81b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1868843
Auto-Submit: Ian Barkley-Yeung <iby@chromium.org>
Reviewed-by: J Kardatzke <jkardatzke@chromium.org>
Commit-Queue: J Kardatzke <jkardatzke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707881}

chrome/browser/resources/feedback/OWNERS

 afakhry@chromium.org
 jkardatzke@chromium.org
+iby@chromium.org
 
 # COMPONENT: Platform>Apps>Feedback