[S] Change in flashrom[master]: flashrom.c:Enable erase path optimisation

[Aarya (Code Review)]

Attention is currently required from: Edward O'Callaghan, Nikolai Artemiev, Anastasia Klimchuk.

Aarya has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/74872 )

Change subject: flashrom.c:Enable erase path optimisation
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Patch Set 3:

(1 comment)

Patchset:

PS2:
> How else can we check if the region is write protected from this erase path. […]

Currently we are checking for wp from region->write_prot but that only works for BUS_PROG. For all else we attempt to erase and the failure of the erase function tells us something is wrong. This makes it difficult to figure out the reason for failure especially if its because the region is wp since the code already does the checks for writable (the first case) before attempting to erase. I feel there should be get_region for all programmers, if possible :)