arc: net: add OWNERS

BUG=None
TEST=None

Change-Id: I3c1e559a86801338566c3deec0aad1d4142909d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2212188Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Commit-Queue: Hugo Benichi <hugobenichi@google.com>
Cr-Commit-Position: refs/heads/master@{#775357}

components/arc/net/OWNERS

+hugobenichi@google.com
+
+# COMPONENT: Platform>Apps>ARC