On Chromebooks the RAM code is implemented by the resistor straps
that we can read and decode from ADC. For Corsola the RAM code can be
read from ADC channel 2 and 3.
TEST=build pass
BUG=b:202871018
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I485c32dec7b425b604b4063d742a0e37d3961513
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59570
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
81a69665dc