[CrOS Cellular] Add OWNERS for //chromeos/dbus/hermes

This adds OWNERS for //chromeos/dbus/hermes. Points to
//chromeos/network/OWNERS

Bug: 1093185
Change-Id: I31373e9644a9f2100956b3a54c79010736e1fd67
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633804Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Azeem Arshad <azeemarshad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844305}

chromeos/dbus/hermes/OWNERS

+file://chromeos/network/OWNERS