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 <[email protected]>

Author: Adam Wojasinski

boards/arm/qemu_cortex_m0/nrf_timer_timer.c

@@ -236,7 +236,7 @@ static int sys_clock_driver_init(const struct device *dev)
 	ARG_UNUSED(dev);
 
 	/* FIXME switch to 1 MHz once this is fixed in QEMU */
-	nrf_timer_frequency_set(TIMER, NRF_TIMER_FREQ_2MHz);
+	nrf_timer_prescaler_set(TIMER, NRF_TIMER_FREQ_2MHz);
 	nrf_timer_bit_width_set(TIMER, NRF_TIMER_BIT_WIDTH_32);
 
 	IRQ_CONNECT(TIMER0_IRQn, 1, timer0_nrf_isr, 0, 0);