Add more registers and make them optional, so they keep untouched/ their default if omitted. Change-Id: I5d8008176d2972976b387c558658b8e70b50af8e Signed-off-by: Max Blau <tripleshiftone@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32376 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>