resolving some warnings in qtmultimedia docs

Change-Id: I9df926f64548a5d53382448ca4eef8d428339aa3
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

src/multimedia/controls/qcamerafocuscontrol.cpp

@@ -167,7 +167,7 @@ QCameraFocusControl::~QCameraFocusControl()
 */
 
 /*!
-  \fn QCameraFocusControl::focusModeChanged
+  \fn void QCameraFocusControl::focusModeChanged(QCameraFocus::FocusModes mode)
 
   Signal is emitted when the focus mode is chaged,
   usually in result of QCameraFocusControl::setFocusMode call or capture mode changes.
@@ -176,7 +176,7 @@ QCameraFocusControl::~QCameraFocusControl()
 */
 
 /*!
-  \fn QCameraFocusControl::focusPointModeChanged
+  \fn void QCameraFocusControl::focusPointModeChanged(QCameraFocus::FocusPointMode mode)
 
   Signal is emitted when the focus point mode is chaged,
   usually in result of QCameraFocusControl::setFocusPointMode call or capture mode changes.
@@ -185,7 +185,7 @@ QCameraFocusControl::~QCameraFocusControl()
 */
 
 /*!
-  \fn QCameraFocusControl::customFocusPointChanged
+  \fn void QCameraFocusControl::customFocusPointChanged(const QPointF &point)
 
   Signal is emitted when the custom focus point is changed.
 

src/multimedia/controls/qradiodatacontrol.cpp

@@ -112,31 +112,31 @@ QRadioDataControl::~QRadioDataControl()
 */
 
 /*!
-    \fn int QRadioDataControl::stationId()
+    \fn QString QRadioDataControl::stationId() const
 
     Returns the current Program Identification
 */
 
 /*!
-    \fn QRadioData::ProgramType QRadioDataControl::programType()
+    \fn QRadioData::ProgramType QRadioDataControl::programType() const
 
     Returns the current Program Type
 */
 
 /*!
-    \fn QString QRadioDataControl::programTypeName()
+    \fn QString QRadioDataControl::programTypeName() const
 
     Returns the current Program Type Name
 */
 
 /*!
-    \fn QString QRadioDataControl::stationName()
+    \fn QString QRadioDataControl::stationName() const
 
     Returns the current Program Service
 */
 
 /*!
-    \fn QString QRadioDataControl::radioText()
+    \fn QString QRadioDataControl::radioText() const
 
     Returns the current Radio Text
 */
@@ -148,7 +148,7 @@ QRadioDataControl::~QRadioDataControl()
 */
 
 /*!
-    \fn bool QRadioDataControl::isAlternativeFrequenciesEnabled()
+    \fn bool QRadioDataControl::isAlternativeFrequenciesEnabled() const
 
     Returns true if Alternative Frequency is currently enabled
 */

src/multimedia/recording/qmediarecorder.cpp

@@ -887,7 +887,7 @@ void QMediaRecorder::stop()
 */
 
 /*!
-    \fn QMediaRecorder::availableChanged(bool available)
+    \fn QMediaRecorder::availabilityChanged(bool available)
 
     Signals that the media recorder is now available (if \a available is true), or not.
 */