g2touch: allow nanosleep syscalls

Add nanosleep syscalls to g2touch query policies to fix g2 touch
firmware check failures.

BUG=b:259011212
TEST=emerge-octopus touch_updater

Change-Id: I3aa72d341ffc803a9639b467f648f106d2700512
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/4429575
Auto-Submit: Jingyuan Liang <jingyliang@chromium.org>
Commit-Queue: Jingyuan Liang <jingyliang@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Tested-by: Jingyuan Liang <jingyliang@chromium.org>
3 files changed