zio:triggers:zio-trig-timer: use timer_setup instead of setup_timer with kernel > 4.15, adapt callback
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it> (CERN)