The policy file for dbus was installed in
share/dbus-1/systemd.d
But dbus picks up files in
share/dbus-1/system.d
This is fixed and rauc is able to register at the system dbus now.
The rauc daemon could not be started because the systemd service file
was missing. This also prevented the DBus Interface to be usable.
We now provide the standard service file from rauc.
