Better default values for UAVCAN params

src/modules/uavcan/uavcan_params.c

@@ -79,8 +79,8 @@ PARAM_DEFINE_INT32(UAVCAN_BITRATE, 1000000);
 /**
  * UAVCAN ESC will spin at idle throttle when armed, even if the mixer outputs zero setpoints.
  *
- * @min 0
- * @max 1
+ * @boolean
+ * @reboot_required true
  * @group UAVCAN
  */
-PARAM_DEFINE_INT32(UAVCAN_ESC_IDLT, 0);
+PARAM_DEFINE_INT32(UAVCAN_ESC_IDLT, 1);