add metadata/profiles bits

We need these to declare this a proper repo for portage to recognize.

We use the name "eclass-overlay" so people don't get confused by a plain
"eclass" dir.

BUG=chromium:205164
TEST=`./update_chroot && ./build_packages --board=stumpy` works

Change-Id: Ib9fc3ccb7e40405461ee40df371372fa009df3b1
Reviewed-on: https://chromium-review.googlesource.com/179970
Reviewed-by: Chris Masone <cmasone@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
2 files changed
tree: 5804ba17f6e073bfd6f9947c5bdb1ef84eea7bc9
  1. metadata/
  2. profiles/