PX4IO driver - use "curcuit_breaker_enabled" function instead of manually checking its value

src/drivers/px4io/px4io.cpp

@@ -1023,18 +1023,11 @@ PX4IO::task_main()
 					}
 				}
 
+				/* Check if the IO safety circuit breaker has been updated */
 				int32_t safety_param_val;
-				param_t safety_param = param_find("CBRK_IO_SAFETY");
+				safety_param_val = circuit_breaker_enabled("CBRK_IO_SAFETY", CBRK_IO_SAFETY_KEY);
-
+				/* Bypass IO safety switch logic by setting FORCE_SAFETY_OFF */
-				if (safety_param != PARAM_INVALID) {
+				(void)io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_FORCE_SAFETY_OFF, safety_param_val);
-
-					param_get(safety_param, &safety_param_val);
-
-					if (safety_param_val == PX4IO_FORCE_SAFETY_MAGIC) {
-						/* disable IO safety if circuit breaker asked for it */
-						(void)io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_FORCE_SAFETY_OFF, safety_param_val);
-					}
-				}
 
 				/* Check if the flight termination circuit breaker has been updated */
 				_cb_flighttermination = circuit_breaker_enabled("CBRK_FLIGHTTERM", CBRK_FLIGHTTERM_KEY);