buildroot

util-linux: bump to v2.30.1

- Drop patch 0002-column-fix-compilation-when-libc-lacks-wide-characte.patch
as it has been applied upstream
- Patch 0001-Revert-build-sys-ncurses-headers-cleanup.patch is still
required to fix ncursesw support.

Signed-off-by: Marcus Hoffmann <m.hoffmann@cartelsol.com>
Cc: "Carlos Santos" <casantos@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>