ms: rearrange code to allow clean exits

This allows gracefully terminating the application by introducing queue
timeouts.

Change-Id: I0b8deebc63cf4d936666fd68e1666d1917e89a5d
diff --git a/Transceiver52M/ms/ms.cpp b/Transceiver52M/ms/ms.cpp
index 2e91cae..e587c05 100644
--- a/Transceiver52M/ms/ms.cpp
+++ b/Transceiver52M/ms/ms.cpp
@@ -78,7 +78,7 @@
 	};
 }
 
-void ms_trx::start()
+void ms_trx::start_lower_ms()
 {
 	if (stop_lower_threads_flag)
 		return;