nrf5/hal/timer: Adding empty IRQ handlers for all timers.

nrf5/hal/hal_timer.c

@@ -30,6 +30,31 @@
 #ifdef HAL_TIMER_MODULE_ENABLED
 
 void hal_timer_init(NRF_TIMER_Type * p_instance, hal_timer_init_t const * p_timer_init) {
+
 }
 
+void TIMER0_IRQHandler(void) {
+
+}
+
+void TIMER1_IRQHandler(void) {
+
+}
+
+void TIMER2_IRQHandler(void) {
+
+}
+
+#if NRF52
+
+void TIMER3_IRQHandler(void) {
+
+}
+
+void TIMER4_IRQHandler(void) {
+
+}
+
+#endif
+
 #endif // HAL_TIMER_MODULE_ENABLED