siemens/mc_apl1: Disable internal UARTs

APL internal UARTs are not used on this mainboard.

Change-Id: I39118262fc6f37b45785538a3f2d1d31d42cbe86
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/21406
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
1 file changed