mb/google/cyan: Clean up Kconfig

Cyan has no VGA BIOS available (at least not publicly), so
remove related options. Disable SoC serial output by default,
since no production devices have this exposed, but leave it
as a user option so it can be selected as needed (eg,
for use with a Google debug servo).

Change-Id: Ic079a39ca5ad0ac653b52248244b94d4bfbd08a4
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39872
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions