zinitix: add support for zinitix touchpad

This function supports Zinitix_FWupdate tool for minijail service.

BUG=b:177393415
TEST=chromeos-touch-update-legacy.sh

Change-Id: I088c98c3a228378312bb4110bf9a0b6aa617482f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/2626471
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Commit-Queue: Harry Cutts <hcutts@chromium.org>
Tested-by: Harry Cutts <hcutts@chromium.org>
4 files changed