Change in coreboot[master]: amdfwtool: Fill PSP directory to ROMSIG based on the SOC ID

[Bao Zheng (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Zheng Bao, Felix Held.
Bao Zheng has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55454 )

Change subject: amdfwtool: Fill PSP directory to ROMSIG based on the SOC ID
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Patch Set 15:

(1 comment)

File src/soc/amd/stoneyridge/Makefile.inc:

https://review.coreboot.org/c/coreboot/+/55454/comment/b365d449_c8820752 
PS14, Line 127: 
              : ifeq ($(FIRMWARE_TYPE),ST)
              : OPT_COMBOCAPABLE=--combo-capable
              : endif
> so does only stoneyridge/praeriefalcon use the new psp directory, but merlinfalcon still uses the ol […]

Yes. For sure.
And the change keeps same behaviour.