All architectures have the same definition for s8/16/32/64
and u8/16/32/64.
Factor out the duplicated code into <asm-generic/int-ll64.h>.
BTW, Linux unified the kernel space definition into int-ll64.h
a few years ago as you see in Linux commit 0c79a8e29b5f
("asm/types.h: Remove include/asm-generic/int-l64.h").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
