Remove unnecessary arrays, use unsigned types for non-negative values and constify where possible. Also define NUM_CHANNELS and NUM_SLOTS. Change-Id: Ie4eb79d9c48194538c0ee41dca48ea32798ad8c6 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46363 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>