Add fwupdate-i2c user and group for etphidiap touchpad FW updater.

The fwupdate-i2c user is also placed in i2c group for access to
i2c-dev device files.

BUG=b:79157488
CQ-DEPEND=CL:1626754
TEST=Built OS image with TP FW updater, installed it on Atlas DUT, invoked
chromeos-touch-update.sh.  That successfully flashed the TP FW when it was
out of date, and quietly did nothing when TP FW was up-to-date or newer (no
downgrading by default).

Change-Id: I91a2ae464f25272e3f2875b7d148ecc76229d451
Signed-off-by: Matthew Blecker <matthewb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1533737
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit a5efe27269b01dc24e8796aea915e6a53d456d88)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1626755
3 files changed
tree: 88bc761f107caa8a23628d5b889b65820ad58348
  1. PRESUBMIT.cfg
  2. eclass/
  3. metadata/
  4. profiles/