Merge changes I89798eee,Ic3dbab31

* changes:
  Intermittently Audio is not heard in USB Head set, while disconnecting /connecting the usb audio headset.
  Set standby as false when the stream is started successfully.
diff --git a/modules/audio_remote_submix/audio_hw.cpp b/modules/audio_remote_submix/audio_hw.cpp
index f96854b..5019ae5 100644
--- a/modules/audio_remote_submix/audio_hw.cpp
+++ b/modules/audio_remote_submix/audio_hw.cpp
@@ -679,7 +679,8 @@
 
     // FIXME this is using hard-coded strings but in the future, this functionality will be
     //       converted to use audio HAL extensions required to support tunneling
-    if ((parms.getInt(String8("exiting"), exiting) == NO_ERROR) && (exiting > 0)) {
+    if ((parms.getInt(String8(AUDIO_PARAMETER_KEY_EXITING), exiting) == NO_ERROR)
+            && (exiting > 0)) {
         struct submix_audio_device * const rsxadev =
                 audio_stream_get_submix_stream_out(stream)->dev;
         pthread_mutex_lock(&rsxadev->lock);