Change in flashrom[master]: spi_master: Add default write_aai function to masters that have none

[Victor Ding (Code Review)]

Attention is currently required from: Nico Huber, David Hendricks, Thomas Heijligen, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk.
Victor Ding has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/56102 )

Change subject: spi_master: Add default write_aai function to masters that have none
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Patch Set 1:

(1 comment)

Patchset:

PS1:
> it85xx was used on mario (the original Cr-48 Chromebook), Stout (Lenovo X131e), and possibly others  […]

The last possible use of these programmers I found was Daisy, which reached EoL in June 2019 (HP Chromebook 11 G2).

I'm okay to remove them; I'll prepare patches to get them deleted.

However, I think we should have this patch merged before removing them. It's better to keep a less broken version in the git history.