flashchips: Add Macronix MX25U8032E

As per `The_Raven Raven` on the mailing list.

Change-Id: I422c3d51e5011e081ff6bccff294817c8c1765d0
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/28821
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2 files changed