cruxus - close output device

It looks like the code for closing device was forgotten. The device
stayed open for some time and alsactl and sound routing was not
working in incoming gsm call then.

src/plugins/mediaengines/cruxus/cruxusoutputthread.cpp

@@ -88,6 +88,7 @@ class OutputThreadPrivate : public QThread
 
     void suspend();
     void resume();
+    void close();
 
 protected:
     void run();
@@ -233,6 +234,16 @@ void OutputThreadPrivate::resume()
     qLog(Media) << "OutputThreadPrivate::resume()";
 }
 
+void OutputThreadPrivate::close()
+{
+    if(audioOutput && opened) {
+        QMutexLocker lock(&mutex);
+        opened = false;
+        audioOutput->close();
+    }
+    qLog(Media) << "OutputThreadPrivate::close()";
+}
+
 inline int OutputThreadPrivate::readFromDevice
 (
  QMediaDevice* device,
@@ -379,6 +390,7 @@ bool OutputThread::open(QIODevice::OpenMode mode)
 
 void OutputThread::close()
 {
+    d->close();
 }
 
 // private slots: