[flashrom] Mark MX25L3205 as tested for erase and write

[Stefan Reinauer]

* David Hendricks <dhendrix at google.com> [101213 20:36]:
> Tested on hardware.
> 
> Signed-off-by: David Hendricks <dhendrix at google.com>
Acked-by: Stefan Reinauer <stepan at coreboot.org>

Stefan