Detect if the last full charge is zero or not.
BUG=chrome-os-partner:36310
BRANCH=none
TEST=Verified on Glimmer.
crosh> battery_firmware check
crosh> battery_firmware update
Change-Id: I078b860acc96f60830c82af8f85cfb98e27095cb
Signed-off-by: Sheng-Liang Song <ssl@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/263156
Reviewed-by: Shawn N <shawnn@chromium.org>