AGESA and binaryPI set the whole CACHE_ROM_SIZE to WRPROT during the
romstage and do not reference the CONFIG_XIP_ROM_SIZE symbol.
Change-Id: I548b9c9066d825c2f03749353b9990b2efddfd9c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35825
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>