L2SDP-996: partial merge

test/py/control/beamlet_stream.py

@@ -171,6 +171,7 @@ class BeamletStream(object):
         self.stream_reader.start()
 
     def stop_stream_reader(self, timeout=60):
+        """ Stop stream reader """
         if self.stream_reader:
             # print_result("stop_stream_reader", True)
             # Wait until SDPFW has stopped stream output