flashchips: Mark Winbond W25Q40BW as tested

As per `The_Raven Raven` on the mailing list.

The tested chip was `W25Q40.W`, but it was later renamed to `W25Q40BW`
when the `W25Q40EW` was added.

Change-Id: I624adef2c5b4dd83f0ce93d6069e315fc407db19
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/28824
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
1 file changed