Update OWNERS for EncryptedReportingJobConfiguration

Bug: chromium:1078512
Change-Id: I696ad733b399edbb13251c12fac8736b37a34598
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568779
Auto-Submit: Zach Trudo <zatrudo@google.com>
Reviewed-by: Sergey Poromov <poromov@chromium.org>
Commit-Queue: Zach Trudo <zatrudo@google.com>
Cr-Commit-Position: refs/heads/master@{#833040}

components/policy/core/common/cloud/OWNERS

 per-file machine_level_user_cloud_policy*=rogerta@chromium.org
 per-file machine_level_user_cloud_policy*=zmin@chromium.org
+per-file encrypted*=zatrudo@google.com
+per-file encrypted*=lbaraz@chromium.com