snappy: Set RW boot power threshold to 18w

Follow reef setting.

BUG=none
BRANCH=reef
TEST=make buildall

Change-Id: I2b118c831010a2779b7600065265d5d2745b8cae
Signed-off-by: Bruce.Wan <Bruce.Wan@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/451229
Commit-Ready: Bruce Wan <Bruce.Wan@quantatw.com>
Tested-by: Bruce Wan <Bruce.Wan@quantatw.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed