Change in coreboot[master]: mb/google/guybrush: Add SoC thermal zone

[Raul Rangel (Code Review)]

Attention is currently required from: Furquan Shaikh, Martin Roth, Tim Wawrzynczak, Rob Barnes, Karthikeyan Ramasubramanian.
Hello build bot (Jenkins), Furquan Shaikh, Martin Roth, Rob Barnes, Karthikeyan Ramasubramanian,

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

https://review.coreboot.org/c/coreboot/+/54134

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

Change subject: mb/google/guybrush: Add SoC thermal zone
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mb/google/guybrush: Add SoC thermal zone

The time constant values were taken from the zork thermal.asl.

BUG=b:186166365
TEST=Boot guybrush to OS and verify logs look correct
      thermal-0294 thermal_trips_update  : Found critical threshold [3641]
      thermal-0321 thermal_trips_update  : No hot threshold
      thermal-0200 thermal_get_temperatur: Temperature is 3060 dK
      thermal-0219 thermal_get_polling_fr: Polling frequency is 100 dS
      thermal-0200 thermal_get_temperatur: Temperature is 3060 dK
    thermal LNXTHERM:00: registered as thermal_zone0
    ACPI: Thermal Zone [TM00] (33 C)
      thermal-0200 thermal_get_temperatur: Temperature is 3070 dK

Signed-off-by: Raul E Rangel 
Change-Id: Iaeed75bdaa16b117d0fa7144ede98db1388f74f3
---
M src/mainboard/google/guybrush/Kconfig
M src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
2 files changed, 51 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/54134/3