For some reason unsigned types were not added in commit0a06fcf608("build: fix kernel 5.4 on macos"), which led to bunch of hacks, like commit3cc57ba462("uboot-sunxi: add missing type __u64") or commit997ff740dc("uboot-mediatek: fix build on Mac OS X"). So lets add the missing unsigned types to workaround it in a bit more maintainable way. Fixes: #13833 Signed-off-by: Petr Štetiar <ynezz@true.cz>