mb/google/skyrim: Add SoC thermal zone

The temperature values were taken from guybrush as a starting point for
skyrim.

BUG=b:230428864
TEST=Boot skyrim to OS and verify thermal zones are populated and
working in /sys/class/thermal/

Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Change-Id: I6669b32f5e3dd63c6523f74166089eb4eb2d7848
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65457
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/mainboard/google/skyrim/Kconfig

@@ -17,6 +17,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select BOARD_ROMSIZE_KB_16384
 	select DRIVERS_GENERIC_GPIO_KEYS
 	select DRIVERS_GENERIC_MAX98357A
+	select DRIVERS_ACPI_THERMAL_ZONE
 	select DRIVERS_I2C_GENERIC
 	select DRIVERS_I2C_HID
 	select DRIVERS_I2C_NAU8825