app-text: Add DIR_METADATA for printscan ebuilds

These already have OWNERS files.  Add the missing DIR_METADATA files.

BUG=b:271011193, b:234625517
TEST=CQ

Change-Id: I748058ad4c264da8ff3163a41a34d21623345231
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/4545340
Commit-Queue: Benjamin Gordon <bmgordon@chromium.org>
Tested-by: Benjamin Gordon <bmgordon@chromium.org>
Reviewed-by: Nathan Muggli <nmuggli@google.com>
Reviewed-by: Piotr Pawliczek <pawliczek@chromium.org>
6 files changed