[XS] Change in coreboot[main]: soc/intel/xeon_sp: Drop SPI_BASE_ADDRESS from _CRS

[Patrick Rudolph (Code Review)]

Attention is currently required from: Christian Walter, Johnny Lin, Lean Sheng Tan, Shuo Liu, Tim Chu.

Patrick Rudolph has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80795?usp=email )

Change subject: soc/intel/xeon_sp: Drop SPI_BASE_ADDRESS from _CRS
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Patch Set 3:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/80795/comment/ece6f045_da5e9038 :
PS1, Line 10: hidden the fast_spi driver will generate the _CRS marking the BAR
> I see. […]

You are right. It looks like the fast_spi driver only works on APL where the fast_spi dev is hidden later and thus the VEN/DEV ID is readable and the device probable.
A seperate fix is needed to support real hidden devices.