mb/google/geralt: Implement SKU ID and RAM code

- Retrieve the SKU ID for Geralt via CBI interface. If that failed
  (or no data found), fall back to ADC channels for SKU ID.
- The RAM code is implemented by the resistor straps that we can read
  and decode from ADC.

TEST=build pass
BUG=b:236331724

Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I31626e44bd873a3866c9bd1d511b476737f15a20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66275
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions