boards: arm: qemu_cortex_m0: Replace deprecated nrfx API
boards: arm: qemu_cortex_m0: Replace deprecated nrfx API

This commit replaces API that became deprecated with the release
of nrfx2.9 - see CHANGELOG in zephyrproject-rtos:hal_nordic repository

Signed-off-by: Adam Wojasinski <37bfb29b130b2a1ed7bda8910aed67578b313697@nordicsemi.no>

finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr