Update cubeb and request a persistent stream session

externals/cubeb

@@ -1 +1 @@
-Subproject commit 616d773441b5355800ce64197a699e6cd6b36172
+Subproject commit 1d66483ad2b93f0e00e175f9480c771af90003a7

src/audio_core/cubeb_sink.cpp

@@ -30,6 +30,7 @@ public:
         params.rate = sample_rate;
         params.channels = num_channels;
         params.format = CUBEB_SAMPLE_S16NE;
+        params.prefs = CUBEB_STREAM_PREF_PERSIST;
         switch (num_channels) {
         case 1:
             params.layout = CUBEB_LAYOUT_MONO;