debianutils: fix for multilib build

debianutils: fix for multilib build

When do multilib build for debianutils, following error appear:
    ERROR: Function failed: Fetcher failure for URL:
    'ftp://ftp.debian.org/debian/pool/main/d/lib64-debianutils/lib64-debianutils_2.30.tar.gz'.
    Unable to fetch URL from any source.

(From meta-openembedded rev: 79fca25ec7dbdea5b2eb50b3a20ad947559a9e76)

Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>