Local Stack Overflow in `update_stop()`

[bandogora]

A local stack overflow is caught by the stack canary on the return of the update_stop() function. This occasionally crashes the app. The watchdog keeps things working, but this is a security issue and needs to be fixed before deployment.

embedded-departure-board/app/src/update_stop.c

Lines 117 to 121 in f156f1c

	if (parse_returned_routes(stop, display_boxes)) {
	return 1;
	}
	return 0;