Change in flashrom[master]: flashrom: Convert do_read() into a libflashrom user

[Daniel Campello (Code Review)]

Attention is currently required from: Edward O'Callaghan, Angel Pons, Anastasia Klimchuk.
Daniel Campello has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/59291 )

Change subject: flashrom: Convert do_read() into a libflashrom user
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Patch Set 4:

(1 comment)

File flashrom.c:

https://review.coreboot.org/c/flashrom/+/59291/comment/989cf90e_50758c43 
PS4, Line 2185: 	ret = write_buf_to_file(buf, size, filename);
> As I already mentioned in CB:59921 the best thing would be to rebase it on the top of this one. […]

These two patches are orthogonal. As you see here the filename in do_read will also have to be optionally NULL. Since the other patch is fixing a bug should go first.