CHERRY-PICK: Include memento_softwareupdate in make_factory_toolkit.sh

Battery cutoff code are shared in memento_softwareupdate. We need to
include it when building factory toolkit.

BUG=chromium:544021
TEST=Build and test factory toolkit on Samus

Reviewed-on: https://chromium-review.googlesource.com/306550
Commit-Ready: Shun-Hsing Ou <shunhsingou@chromium.org>
Tested-by: Shun-Hsing Ou <shunhsingou@chromium.org>
Reviewed-by: Bowgo Tsai <bowgotsai@chromium.org>
(cherry picked from commit fe0647a3cce55675060bd6809f465e1cb1c001e2)
Change-Id: I1d8e0239bcf4987a9f467b1f5f3320d3ba9b3570
Reviewed-on: https://chromium-review.googlesource.com/306981
Reviewed-by: Shun-Hsing Ou <shunhsingou@chromium.org>
1 file changed