Change in coreboot[master]: soc/amd/sabrina: Build support to add SPL File

[Felix Held (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Fred Reitberger, Karthik Ramasubramanian.
Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63313 )

Change subject: soc/amd/sabrina: Build support to add SPL File
......................................................................

Patch Set 1:

(1 comment)

File src/soc/amd/sabrina/Kconfig:

https://review.coreboot.org/c/coreboot/+/63313/comment/18a433b3_87f8dfda 
PS1, Line 394: 	  Have a mainboard specific SPL table file, which is created by AMD
would be good to mention that this is an override of the default one in amd_blobs