This enables display for use by payload.
TEST=Build and boot the mainboard. Ensure that the screens displayed by
payload are visible.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I5fcd70623b15ae39954242605e75b2c5ce02ff14
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39347
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>