uasyncio.queues: Fix queue full condition check in put().

Author: pfalcon

uasyncio.queues/uasyncio/queues.py

@@ -61,7 +61,7 @@ def put(self, val):
 
             yield from queue.put(item)
         """
-        while self.qsize() > self.maxsize and self.maxsize:
+        while self.qsize() >= self.maxsize and self.maxsize:
             yield from sleep(self._attempt_delay)
         self._put(val)