Change in coreboot[master]: soc/amd/picasso: Add entry for PSP NVRAM data & RPMC data

[ritul guru (Code Review)]

Attention is currently required from: Bao Zheng, Jason Glenesk, Raul Rangel, Marshall Dawson, Zheng Bao, Felix Held.
ritul guru has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51836 )

Change subject: soc/amd/picasso: Add entry for PSP NVRAM data & RPMC data
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Patch Set 8:

(1 comment)

File src/soc/amd/picasso/fw.cfg:

https://review.coreboot.org/c/coreboot/+/51836/comment/0f835902_96aa3534 
PS8, Line 9: PSPNVRAM_FILE          
How will we access these regions without names? like RPMC/PSP_NVRAM region is read/write, when access TA apps request read/write access to PSP which trigger smi to coreboot to access SPI accordingly.