tools/util-linux: build libuuid as PIC
Needed to fix users of libuuid.a as autoconf applies PIC to only shared
libraries by default.
Found when trying to build python3/host.
Signed-off-by: Rosen Penev <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/15852
Signed-off-by: Robert Marko <[email protected]>