[XS] Change in coreboot[main]: soc/amd/genoa_poc: Fix DEBUG_SMI compilation error

[Paul Menzel (Code Review)]

Attention is currently required from: Arthur Heymans, Benjamin Doron.

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81072?usp=email )

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Change subject: soc/amd/genoa_poc: Fix DEBUG_SMI compilation error
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Patch Set 1:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/81072/comment/78bd0b07_43d9eab5 :
PS1, Line 7: Fix DEBUG_SMI compilation error
I’d make it more about the action.

https://review.coreboot.org/c/coreboot/+/81072/comment/f46af00c_cbc81832 :
PS1, Line 10: addressing and initialising the SoC-specific UART.
Therefore, add uart.c to …