libflashrom.h: add from upstream

This is copied out of upstream flashrom. Add to our fork so we can
define the ABI to make a CLI-compatibility layer.

BUG=chromium:1032351
BRANCH=none
TEST=none

Change-Id: I71a3110411bc99a962159920653b30f7622ac6f0
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/flashrom/+/1959585
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
1 file changed