These constants are scattered around the various interface
implementations and should be in one place. This will also clean up
the u-boot side when ec_commands.h is copied there.
BUG=chrome-os-partner:20257
BRANCH=none
TEST=build link, spring, pit; test 'ectool hello'
Change-Id: Ib1425db00ec8220538d8c5c65107ac9548009516
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/60810
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>