Prepare for elfutils 0.170

[Mark Wielaard]

On Wed, 2017-08-02 at 18:42 +0200, Mark Wielaard wrote:
> It has been 3 months again so time for another update.
> I just pushed the version bump update and would like to do a release
> tomorrow unless some showstoppers are found.

I tested current git master on Debian 8 amd64, Debian 9 amd64, Fedora
rawhide x86_64, ppc64le, aarch64, ppc64, i686, s390x, armv7hl, RHEL6
ppc, s390, x86_64, ppc64, i686, s390x and RHEL7 ppc, x86_64, s390,
aarch64, ppc64le, ppc64, i686, s390x all with zero FAIL.