[nrf fromtree] boards: nrf*_bsim: Detect attempt to configure not existing int

Similar to 923d4fb. Prevent overrunning the irq vector table.
This is not happening today in tree, but coverity thinks it
does. Checking for it to prevent it is not a bad idea
anyhow, so let's do it.

Signed-off-by: Krzysztof Chruściński <[email protected]>
(cherry picked from commit cd23fdf)

Author: nordic-krch

boards/native/nrf_bsim/irq_handler.c

@@ -278,6 +278,11 @@ void posix_isr_declare(unsigned int irq_p, int flags, void isr_p(const void *),
  */
 void posix_irq_priority_set(unsigned int irq, unsigned int prio, uint32_t flags)
 {
+	if (irq >= NHW_INTCTRL_MAX_INTLINES) {
+		bs_trace_error_time_line("Attempted to configure not existent interrupt %u\n",
+					 irq);
+		return;
+	}
 	hw_irq_ctrl_prio_set(CONFIG_NATIVE_SIMULATOR_MCU_N, irq, prio);
 }