Change in flashrom[master]: layout: Use linked list for `struct romentry`

[Angel Pons (Code Review)]

Attention is currently required from: Nico Huber, Edward O'Callaghan, Daniel Campello, Anastasia Klimchuk.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/33521 )

Change subject: layout: Use linked list for `struct romentry`
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Patch Set 8:

(2 comments)

File layout.c:

https://review.coreboot.org/c/flashrom/+/33521/comment/3316e62b_b983cde4 
PS8, Line 413: 	struct romentry *const entry = malloc(sizeof(*entry));
Given that you memset() the allocated space afterwards, use calloc() instead?

https://review.coreboot.org/c/flashrom/+/33521/comment/c0e4c9ab_41269241 
PS8, Line 418: entry->next	= layout->head;
> Does this mean entries are in a loop? Given `layout->head = entry` below?

No loops here, this is just a linked list. New elements are added as new heads of the list, the old head becomes the next element of the newly-inserted element.