Add Div_Round_Closest() for positive integer types

Change-Id: Ic8d398902947bf18d97c9ab3c6ca6204aa0629f0
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/18356
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Nico Huber <nico.h@gmx.de>
3 files changed