Finding systemd devel packages using libsystemd does not work as
in RHEL based distro the package name is systemd-devel and for
deb/ubunutu it is libsystemd. It is also giving false result when
podman rpm is built with systemd but hack/systemd_tag.sh does not
return anything.
Install systemd-devel package in build_rpm.sh script
Moving to systemd/sd-daemon.h header files which comes from devel
packages fixes the issue.
Signed-off-by: Chandan Kumar (raukadah) <raukadah@gmail.com>