dediprog: Implement 4BA EAR mode for protocol v1

With an SF100 and protocol version 1, using the extended address
register of the flash chip seems safe. Make use of that and remove
the broken 4BA modes flag.

Tested with SF100 V:5.1.9 and W25Q256FV.

Change-Id: If926cf3cbbebf88231116c4d65bafc19d23646f6
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/32016
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
3 files changed