Bluetooth: controller: nrf5: use portable IRQ pending API

Replace direct NVIC_SetPendingIRQ()/NVIC_ClearPendingIRQ() calls with
k_irq_set_pending()/k_irq_clear_pending(). The portable API is backed by
the NVIC on the Nordic hardware targets and by the POSIX-arch board
interface on the simulated bsim targets, so the CMSIS emulation layer
is no longer involved.

Assisted-by: Claude:claude-opus-5
Signed-off-by: Anas Nashif <anas.nashif@intel.com>

Author: nashif

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/ecb.c

@@ -8,6 +8,7 @@
 #include <stdint.h>
 #include <string.h>
 
+#include <zephyr/irq.h>
 #include <zephyr/sys/byteorder.h>
 
 #include <hal/nrf_ecb.h>
@@ -191,7 +192,7 @@ void ecb_encrypt_nonblocking(struct ecb *e)
 				    | ECB_INTENSET_ENDECB_Msk);
 
 	/* enable interrupt */
-	NVIC_ClearPendingIRQ(ECB_IRQn);
+	k_irq_clear_pending(ECB_IRQn);
 	irq_enable(ECB_IRQn);
 
 	/* start the encryption h/w */

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio.c

@@ -5,6 +5,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/irq.h>
 #include <zephyr/toolchain.h>
 #include <zephyr/dt-bindings/gpio/gpio.h>
 #include <zephyr/sys/byteorder.h>
@@ -1191,7 +1192,7 @@ uint32_t radio_tmr_isr_set(uint32_t start_us, radio_isr_cb_t cb, void *param)
 
 	nrf_timer_int_enable(EVENT_TIMER, TIMER_INTENSET_COMPARE2_Msk);
 
-	NVIC_ClearPendingIRQ(TIMER0_IRQn);
+	k_irq_clear_pending(TIMER0_IRQn);
 
 	irq_enable(TIMER0_IRQn);
 
@@ -2525,7 +2526,7 @@ uint32_t radio_ccm_is_done(void)
 		cpu_sleep();
 	}
 	nrf_ccm_int_disable(NRF_CCM, CCM_INTENCLR_ENDCRYPT_Msk);
-	NVIC_ClearPendingIRQ(nrfx_get_irq_number(NRF_CCM));
+	k_irq_clear_pending(nrfx_get_irq_number(NRF_CCM));
 
 	return (NRF_CCM->EVENTS_ERROR == 0);
 }
@@ -2737,7 +2738,7 @@ uint32_t radio_ar_has_match(void)
 
 	nrf_aar_int_disable(NRF_AAR, AAR_INTENCLR_END_Msk);
 
-	NVIC_ClearPendingIRQ(nrfx_get_irq_number(NRF_AAR));
+	k_irq_clear_pending(nrfx_get_irq_number(NRF_AAR));
 
 	if (NRF_AAR->EVENTS_RESOLVED && !NRF_AAR->EVENTS_NOTRESOLVED) {
 		return 1U;
@@ -2777,7 +2778,7 @@ uint8_t radio_ar_resolve(const uint8_t *addr)
 	nrf_aar_event_clear(NRF_AAR, NRF_AAR_EVENT_RESOLVED);
 	nrf_aar_event_clear(NRF_AAR, NRF_AAR_EVENT_NOTRESOLVED);
 
-	NVIC_ClearPendingIRQ(nrfx_get_irq_number(NRF_AAR));
+	k_irq_clear_pending(nrfx_get_irq_number(NRF_AAR));
 
 	nrf_aar_int_enable(NRF_AAR, AAR_INTENSET_END_Msk);
 
@@ -2787,7 +2788,7 @@ uint8_t radio_ar_resolve(const uint8_t *addr)
 
 	nrf_aar_int_disable(NRF_AAR, AAR_INTENCLR_END_Msk);
 
-	NVIC_ClearPendingIRQ(nrfx_get_irq_number(NRF_AAR));
+	k_irq_clear_pending(nrfx_get_irq_number(NRF_AAR));
 
 	retval = (NRF_AAR->EVENTS_RESOLVED && !NRF_AAR->EVENTS_NOTRESOLVED) ?
 		 1U : 0U;

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/swi.h

@@ -63,22 +63,24 @@
 
 #endif
 
+#include <zephyr/irq.h>
+
 static inline void hal_swi_init(void)
 {
 	/* No platform-specific initialization required. */
 }
 
 static inline void hal_swi_lll_pend(void)
 {
-	NVIC_SetPendingIRQ(HAL_SWI_RADIO_IRQ);
+	k_irq_set_pending(HAL_SWI_RADIO_IRQ);
 }
 
 static inline void hal_swi_worker_pend(void)
 {
-	NVIC_SetPendingIRQ(HAL_SWI_WORKER_IRQ);
+	k_irq_set_pending(HAL_SWI_WORKER_IRQ);
 }
 
 static inline void hal_swi_job_pend(void)
 {
-	NVIC_SetPendingIRQ(HAL_SWI_JOB_IRQ);
+	k_irq_set_pending(HAL_SWI_JOB_IRQ);
 }