To achieve higher power efficiency, we want the input voltage to be as
low as possible. If the PD source advertise several choices over
PD_MAX_POWER_MW, choose the one with the lowest voltage.
BRANCH=none
BUG=chrome-os-partner:54519
TEST=Plug in Liteon charger and make sure 15V/3A is selected
Change-Id: I6157eb94a1cb45cd537acc79c377db2cff09d922
Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/356317
Reviewed-by: Rong Chang <rongchang@chromium.org>