ich_descriptors: Fix range checks for dumps

These explicit off-by-one calculations were... off-by-one.

Change-Id: If57c92ba28f91c4d72123ef0cfd2d9d5ac0a0656
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/19031
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
1 file changed