adjust execution place

Author: zxcpoiu

android/src/main/java/com/zxcpoiu/incallmanager/InCallManagerModule.java

@@ -869,14 +869,9 @@ public void run() {
     public void setSpeakerphoneOn(final boolean enable) {
         if (enable != audioManager.isSpeakerphoneOn())  {
             Log.d(TAG, "setSpeakerphoneOn(): " + enable);
+	    audioManager.setMode(defaultAudioMode);
             audioManager.setSpeakerphoneOn(enable);
         }
-
-	if (enable){
-            audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
-        } else {
-            audioManager.setMode(AudioManager.MODE_NORMAL);
-        }
     }
 
     // --- TODO (zxcpoiu): These two api name is really confusing. should be changed.