Chell was still set to use W25Q64 instead of the W25X40 that is
actually on the board.
BUG=chrome-os-partner:46289
BRANCH=none
TEST=successfully run "flash_ec --board=chell"
Change-Id: If21e5f9a00600c97d81d2bb2a8700801ae5c2fd6
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/308727
Reviewed-by: Shawn N <shawnn@chromium.org>