buffet: Add privet code into buffet binary

Code is still not called, only compiled and unit tested.

BUG=brillo:1161
TEST=`FEATURES=test emerge-gizmo buffet`

Change-Id: I2ba06200698bbec324d3e1598db1c8e261062a39
Reviewed-on: https://chromium-review.googlesource.com/276365
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
2 files changed
tree: 72d83c0c6028f1423b380d578d5f4127275ea73a
  1. buffet/