[S] Change in coreboot[master]: soc/amd/mendocino: Set up SoC-specific XHCI defines

[Martin Roth (Code Review)]

Attention is currently required from: Robert Zieba, Jason Glenesk, Raul Rangel, Matt DeVillier, Angel Pons, Fred Reitberger, Karthik Ramasubramanian, Felix Held.

Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/67938 )

Change subject: soc/amd/mendocino: Set up SoC-specific XHCI defines
......................................................................

Patch Set 12: Code-Review+2

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/67938/comment/9545a98f_5a200b29 
PS12, Line 10: 
Nit: add "Enable SOC_AMD_COMMON_BLOCK_XHCI"