Add dual display pipe path. Also change the original single pipe path
with DSC engine configured in relay mode.
TEST=build pass and test display logo ok
BUG=b:424782827
Change-Id: I2373ea63a08bf25a7eef45b947d218b445b62130
Signed-off-by: Nancy Lin <nancy.lin@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90039
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
3cf976e51a