Change in coreboot[master]: soc/amd/common/block/lpc/spi_dma: Implement SPI DMA functionality

[Felix Held (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Furquan Shaikh, Marshall Dawson, Julius Werner, Eric Peers, Karthik Ramasubramanian.
Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56228 )

Change subject: soc/amd/common/block/lpc/spi_dma: Implement SPI DMA functionality
......................................................................

Patch Set 7:

(1 comment)

File src/soc/amd/common/block/lpc/Kconfig:

https://review.coreboot.org/c/coreboot/+/56228/comment/b705eb56_3b0224f0 
PS6, Line 15: The SPI DMA controller
            : 	  is only functional on Cezanne, Renoir or later SoCs.
> I think checking a handful of specific AMD SoCs in AMD common code should be fine. […]

ok, checking that it's not stoneyridge or picasso is probably the better solution then and since those are the oldest soc in soc/amd and i don't expect anything older getting added to soc/amd, this probably won't cause any problem in the future. let's use the depends on !SOC_AMD_PICASSO && !SOC_AMD_STONEYRIDGE way then