To provide power to PS8640, the eDP bridge IC on krabby, add control
of VRF12 and VCN33 to set voltage from MT6366.
TEST=measure 1.2V from VRF12 and 3.3V from VCN33.
BUG=b:210806060
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I55a9ca16e1e335e9355d0a1b30c278a9969db197
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60446
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
0069f6a18c