power: lower the usb_min_ac_watts threshold

The current usb_min_ac_watts threshold of 15.0 W is causing false
positives due to race conditions. Set this threshold to 1.0 to
effectively disable low power charger notifications for the time
being.

BUG=chrome-os-partner:38780
TEST=On Samus plug low power chargers and verify that the low power
charger notification doesn't pop up and the battery icon doesn't
change to low power charger.

Change-Id: Iee005bc36e931c720d0b07801e93d59458d0b8ad
Signed-off-by: Sameer Nanda <snanda@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/264130
Reviewed-by: Dan Erat <derat@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
(cherry picked from commit 3df7b9c7cb3794e4673ae8f005e0c4331d211697)
Reviewed-on: https://chromium-review.googlesource.com/269979
1 file changed