ilitek: add arm64 policy for ilitek-its touch controller

Add arm64 policy for ilitek-its touch controller

BUG=b:315065159
TEST='emerge-corsola touch_updater;' \
     'cros deploy ${DUT} touch_updater;' \
     'chromeos-touch-update.sh' \
     Check /var/log/messages for ilitek.bin update result.

Change-Id: I9c779c4f1b55bd386b5f39ec7ebda297840ed567
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/5117853
Reviewed-by: Henry Barnor <hbarnor@chromium.org>
Tested-by: Joe Hong <joe_hung@ilitek.com>
Auto-Submit: Joe Hong <joe_hung@ilitek.com>
Commit-Queue: Joe Hong <joe_hung@ilitek.com>
2 files changed