Include the coreutils utilities required for macOS
and other non-GNU friendly OSs to products like the SDK.
This also allows manually building coreutils on Linux
without having to manually edit this Makefile.
Tested-by: Georgi Valkov <gvalkov@gmail.com> # macOS
Signed-off-by: Michael Pratt <mcpratt@pm.me>
Link: https://github.com/openwrt/openwrt/pull/16522
Signed-off-by: Robert Marko <robimarko@gmail.com>
f7fd8303be