[L] Change in flashrom[master]: flashrom.c: Add wrapper function to use the erase algorithm

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Simon Buhrow, Nico Huber, Aarya, Anastasia Klimchuk.

Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/66104 )

Change subject: flashrom.c: Add wrapper function to use the erase algorithm
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Patch Set 73:

(1 comment)

File flashrom.c:

https://review.coreboot.org/c/flashrom/+/66104/comment/d3e27273_45d30e79 
PS72, Line 1349: static int erase_by_layout
> what you want to do is have both paths parallel to one another and atomically switch over to the nex […]

A path to do this could be;

- factor out the erase logic into its own C file from flashrom.c
 - put your implementation into another C file,
 - finally have the functions in flashrom.c be the entry-point to switch between those two?

The benefits here would be, easy A/B testing, less disruptive, better long term vision on flashrom.c kitchsink syndrome, more modularity for the erasure path.