The SPI DMA controller can only perform transactions on a cache line
boundary. This change removes the magic number and uses the #define to
make it clear.
BUG=b:179699789
TEST=Boot guybrush to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ie7b851dc2433e44a23224c3ff733fdea5fbcca0c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58377
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>