modules: hal_nordic: nrf_802154_irq ZLI support

Parameter `prio` of `nrf_802154_irq_init` is now allowed to have
negative value what means use of ZLI priority or highest possible
priority if ZLIs are disabled.

Signed-off-by: Andrzej Kuros <andrzej.kuros@nordicsemi.no>
2 files changed