drivers: intc: nxp_pint: fix off-by-one error in pin_enable

Prevent out-of-bounds access in nxp_pint_pin_enable by fixing the
comparison to use >= instead of >.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

drivers/interrupt_controller/intc_nxp_pint.c

@@ -69,7 +69,7 @@ int nxp_pint_pin_enable(uint8_t pin, enum nxp_pint_trigger trigger, bool wake)
 {
 	uint8_t slot = 0U;
 
-	if (pin > ARRAY_SIZE(pin_pint_id)) {
+	if (pin >= ARRAY_SIZE(pin_pint_id)) {
 		/* Invalid pin ID */
 		return -EINVAL;
 	}