BUG=chrome-os-partner:56947
TEST=Verifed country code can be parsed from VPD in depthcharge.
BRANCH=None
Change-Id: I4616fefc6a377d7830397cdadb493927358e25cc
Signed-off-by: Kan Yan <kyan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/425819
Reviewed-by: Aaron Durbin <adurbin@chromium.org>