coreutils: fix to build with acl support

coreutils: fix to build with acl support

Fix the issue that coreutils was built without acl support:

configure: WARNING: libacl development library was not found or not usable.
configure: WARNING: GNU coreutils will be built without ACL support.

which will cause ls and cp commands don't have the ACL related behaviors:
ls -l: no plus sign(+) after the permission string for files that have ACL
cp -p: can not preserves the ACLs.

[YOCTO #2959]

(From OE-Core rev: b30ef39cc26dd0b6ed08bd2b1a6394de6b540720)

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>