This is a precursor to changing the switch state machine to delay
powering on the AP until the charge_state module knows if there's
enough power to do so (which it will know when it leaves the INIT
state).
BUG=chrome-os-partner:17124
BRANCH=link
TEST=manual
1. Reboot EC on battery power. See charge state init->discharging
2. Plug in AC. See charge state discharging->reinit
(charge state will then transition to some other charging or idle state
based on battery level)
Change-Id: Ia02cc8b37e9b5e8d6dd8c2fbfdf14e385694b1bf
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/44291
Reviewed-by: Bill Richardson <wfrichar@chromium.org>