Add a fw_config for touchscreen and non-touchscreen sku.
Based on the field to differentiat the touchscreen I2C port on/off
and GPIOs configuration.
BUG=none
TEST=Update the fw_config field and check the ap log:
ABSENCE = 0 ... without touchscreen i2c probing messages.
PRESENCE = 1 ... with touchscreen i2c probing messages.
Change-Id: I5f2cc0b0c37986240fbbeae3668ccc250748295d
Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89851
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>