[M] Change in coreboot[master]: Add support for PSP NVRAM base addr and size

[ritul guru (Code Review)]

Attention is currently required from: Bao Zheng, Jason Glenesk, Matt DeVillier, Paul Menzel, Fred Reitberger, Felix Held.

ritul guru has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/67137 )

Change subject: Add support for PSP NVRAM base addr and size
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Patch Set 4:

(1 comment)

File util/amdfwtool/amdfwtool.h:

https://review.coreboot.org/c/coreboot/+/67137/comment/53097c35_b48af364 
PS4, Line 279: 	uint64_t dest;
             : 	size_t size;
> Are these 2 fields needed here?

yes, as when filename does not exist then dest addr and size will be updated in psp dir for PSP_NVRAM.