Change in flashrom[master]: layout: Add -i <region>[:<file>] support

[Daniel Campello (Code Review)]

Attention is currently required from: Sam McNally, Nico Huber, Nicola Corna, Paul Menzel, Stefan Reinauer, David Hendricks, Arthur Heymans, Carl-Daniel Hailfinger.
Daniel Campello has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/23021 )

Change subject: layout: Add -i <region>[:<file>] support
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Patch Set 27:

(1 comment)

File cli_classic.c:

https://review.coreboot.org/c/flashrom/+/23021/comment/012d23ac_6a9ef86b 
PS27, Line 324: free(tempstr);
> Extremely minor and sorry to be a bother, do you mind splitting out this leak fix into a separate pa […]

Not a leak fix... before the string was stored directly on the layout entry... Now I'm strdup it (see layout.c new line 145) so freeing it right after here