Change in coreboot[master]: util/spd_tools: Add ability to override SPD file for parts

[Robert Zieba (Code Review)]

Attention is currently required from: Reka Norman, Rob Barnes, Karthik Ramasubramanian.
Robert Zieba has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63281 )

Change subject: util/spd_tools: Add ability to override SPD file for parts
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Patch Set 3:

(2 comments)

File util/spd_tools/README.md:

https://review.coreboot.org/c/coreboot/+/63281/comment/870a6add_07dfe445 
PS2, Line 467: *   for in the spd directory, if it is not found there then it will be searched for in the
> This order should be reversed. i.e. a local SPD file should override the common SPD file.

Done

https://review.coreboot.org/c/coreboot/+/63281/comment/6cf7a004_34fa5a7a 
PS2, Line 478: H5AN8G6NDJR-XNC,8
> I assume there's nothing preventing using one of the common generic SPDs here. e.g. […]

Correct