[M] Change in coreboot[master]: src: Implement framework for PRERAM VSD store

[Kapil Porwal (Code Review)]

Attention is currently required from: Arthur Heymans, Dinesh Gehlot, Julius Werner, Lean Sheng Tan, Subrata Banik, Werner Zeh.

Kapil Porwal has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/76393?usp=email )

Change subject: src: Implement framework for PRERAM VSD store
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Patch Set 12:

(3 comments)

Patchset:

PS10:
> > Sorry, I still disagree with this whole "VSD" thing and the extra APIs you add for it. […]

Although it is temporary, the current implementation has an advantage over static variables that it provides a way to carry data between preram stages.

File src/cpu/intel/car/romstage.c:

https://review.coreboot.org/c/coreboot/+/76393/comment/aa796154_11bc5d9c :
PS12, Line 9: #include <cbmem_vsd.h>
Remove it.

File src/lib/cbmem_vsd.c:

https://review.coreboot.org/c/coreboot/+/76393/comment/b506c03e_144cf1b9 :
PS12, Line 55: 	if(!cbmem_area)
> `space required before the open parenthesis '('`

Please fix.