[S] Change in coreboot[main]: mb/google/brox/var/jubilant: Add fw_config for WWAN Sar Sensor

[Ren Kuo (Code Review)]

Attention is currently required from: Karthik Ramasubramanian, Kenneth Chan.

Hello Karthik Ramasubramanian, Kenneth Chan,

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

https://review.coreboot.org/c/coreboot/+/85107?usp=email

to look at the new patch set (#2).

Change subject: mb/google/brox/var/jubilant: Add fw_config for WWAN Sar Sensor
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mb/google/brox/var/jubilant: Add fw_config for WWAN Sar Sensor

The current WWAN(LTE) does not require any sar setting from RF team's
suggestion, and sar sensor will be remvoed from DVT schematic.
To reserve the extendibility, add the fw_config DB_1A_LTE_SAR:
field DB_USB 11 12
    option DB_1A		0 (None LTE)
    option DB_1A_LTE	1 (LTE without sar sensor)
    option DB_1A_LTE_SAR	2 (LTE with sar sensor)
end

Base on the fw_config to enable/disable to related functions:
0)Disable WWAN and Sar if DB_USB = DB_1A
1)Enable WWAN and disable sar sensor if DB_USB = DB_1A_LTE
2)Enable WWAN and Sar sensor if DB_USB = DB_1A_LTE_SAR

BUG=b:375341992
TEST=Build and verify on jubilant by fw_config
     ls -l /sys/bus/i2c/devices
     i2cdetect -y -r

Change-Id: If9231ac8df94e1dc514ecf0780c99adbfb902893
Signed-off-by: Ren Kuo 
---
M src/mainboard/google/brox/variants/jubilant/Makefile.mk
M src/mainboard/google/brox/variants/jubilant/fw_config.c
M src/mainboard/google/brox/variants/jubilant/overridetree.cb
M src/mainboard/google/brox/variants/jubilant/smihandler.c
M src/mainboard/google/brox/variants/jubilant/variant.c
5 files changed, 34 insertions(+), 8 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/07/85107/2