Change in coreboot[master]: soc/amd/common/espi,mb/: Allow configuring open drain ALERT#

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Furquan Shaikh, Marshall Dawson, Rob Barnes, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Furquan Shaikh, Marshall Dawson, Rob Barnes, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/52954

to look at the new patch set (#3).

Change subject: soc/amd/common/espi,mb/: Allow configuring open drain ALERT#
......................................................................

soc/amd/common/espi,mb/: Allow configuring open drain ALERT#

Some designs might wish to use an open drain eSPI ALERT#. This change
adds an enum that allows setting the eSPI alert mode.

BUG=b:187122344, b:186135022
TEST=Boot guybrush using all 3 alert modes

Signed-off-by: Raul E Rangel 
Change-Id: Ia35fc59a699cf9444b53aad5c9bb71aa27ce9251
---
M src/mainboard/amd/bilby/devicetree.cb
M src/mainboard/amd/majolica/devicetree.cb
M src/mainboard/amd/mandolin/variants/cereme/devicetree.cb
M src/mainboard/amd/mandolin/variants/mandolin/devicetree.cb
M src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
M src/mainboard/google/mancomb/variants/baseboard/devicetree.cb
M src/mainboard/google/zork/variants/baseboard/devicetree_dalboz.cb
M src/mainboard/google/zork/variants/baseboard/devicetree_trembyle.cb
M src/soc/amd/common/block/include/amdblocks/espi.h
M src/soc/amd/common/block/lpc/espi_util.c
10 files changed, 39 insertions(+), 14 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/54/52954/3