Fix qdoc warnings.

Change-Id: Ie351f33f88270186b7df0f9cd671fa4e31624231
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>

src/multimedia/qmediaserviceprovider.cpp

@@ -887,14 +887,6 @@ QMediaServiceProvider *QMediaServiceProvider::defaultServiceProvider()
     Destroys a media service supported devices interface.
 */
 
-/*!
-    \since 5.3
-
-    \fn QByteArray QMediaServiceSupportedDevicesInterface::defaultDevice(const QByteArray &service) const
-
-    Returns the default device for a \a service type.
-*/
-
 /*!
     \fn QList<QByteArray> QMediaServiceSupportedDevicesInterface::devices(const QByteArray &service) const
 
@@ -907,6 +899,29 @@ QMediaServiceProvider *QMediaServiceProvider::defaultServiceProvider()
     Returns the description of a \a device available for a \a service type.
 */
 
+/*!
+    \class QMediaServiceDefaultDeviceInterface
+    \inmodule QtMultimedia
+    \brief The QMediaServiceDefaultDeviceInterface class interface
+    identifies the default device used by a media service plug-in.
+
+    A QMediaServiceProviderPlugin may implement this interface.
+
+    \since 5.3
+*/
+
+/*!
+    \fn QMediaServiceDefaultDeviceInterface::~QMediaServiceDefaultDeviceInterface()
+
+    Destroys a media service default device interface.
+*/
+
+/*!
+    \fn QByteArray QMediaServiceDefaultDeviceInterface::defaultDevice(const QByteArray &service) const
+
+    Returns the default device for a \a service type.
+*/
+
 /*!
     \class QMediaServiceCameraInfoInterface
     \inmodule QtMultimedia
@@ -918,6 +933,12 @@ QMediaServiceProvider *QMediaServiceProvider::defaultServiceProvider()
     implement the QMediaServiceSupportedDevicesInterface.
 */
 
+/*!
+    \fn QMediaServiceCameraInfoInterface::~QMediaServiceCameraInfoInterface()
+
+    Destroys a media service camera info interface.
+*/
+
 /*!
     \fn QMediaServiceCameraInfoInterface::cameraPosition(const QByteArray &device) const