backport upstream commit 592dcdcf243576bd2517d3da9bc18990de08e37e
to fix packaging when building with --enable-systemd=no
(From OE-Core rev: bc91a95ad96faa644241833a883cc63608dd59c2)
Signed-off-by: Adriaan Schmidt <adriaan.schmidt@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>