flashchips: Mark GigaDevice GD25Q128C as tested

As per Tomasz Walach on the mailing list.

Change-Id: Ib0d7485c7221f92ec13995c58065a48e08f57cd8
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/28819
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
1 file changed