mainboard/amd,lippert: Drop SIO_PORT from Kconfig

CONFIG_SIO_PORT is not used anywhere and should not be here any way.

Change-Id: I39eb2d668f1da9f89b7ff6eb219af1a48cb29232
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6044
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
5 files changed