FAFT: Pass the ChromeOSInterface object to flashrom_util

This change fixes a minor issue that the flashrom_util always
instantiated a new ChromeOSInterface object.

BUG=chromium:516398
TEST=Ran a firmware corruption test to exercise the flashrom_util.

Change-Id: I9e29b4fb5cde4b670e27be78ec36655725c18b8b
Reviewed-on: https://chromium-review.googlesource.com/290328
Commit-Ready: Wai-Hong Tam <waihong@chromium.org>
Tested-by: Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@chromium.org>
2 files changed