[S] Change in coreboot[master]: soc/intel/elkhartlake: Make SATA speed limit configurable

[Mario Scheithauer (Code Review)]

Attention is currently required from: Paul Menzel, Lean Sheng Tan, Werner Zeh.

Mario Scheithauer has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71229 )

Change subject: soc/intel/elkhartlake: Make SATA speed limit configurable
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Patch Set 2: Code-Review+2

(1 comment)

File src/soc/intel/elkhartlake/chip.h:

https://review.coreboot.org/c/coreboot/+/71229/comment/42b0997e_0787e49e 
PS2, Line 108: 	SATA_DEFAULT = 0,
             : 	SATA_GEN1,
             : 	SATA_GEN2
> Since Gen 3 is the highest SATA speed grade it is not really a limit then. […]

I have also looked inside FSP and there it is defined as you already mentioned. So I just thought that maybe it's good to keep it the same, but it's good for me.