[coreboot-gerrit] [S] Change in coreboot[main]: mb/asus/p8z77-m[_pro]: Properly configure early serial

[Nico Huber (Code Review)]

Attention is currently required from: Angel Pons, Keith Hui, Patrick Rudolph, Paul Menzel, Vlado Cibic.

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/73693?usp=email )

Change subject: mb/asus/p8z77-m[_pro]: Properly configure early serial
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Patch Set 9:

(1 comment)

Patchset:

PS9: 
Devicetrees of these two differ: '-M' enables a UART A, '-M PRO' enables a UART B.
Looking at pictures of these boards, they look different enough that this is not
unlikely.

How about splitting this? i.e. Remove dead code from '-M PRO' and add the select
to the '-M' in a separate patch?