Update import QtMultimedia

src/FlightDisplay/FlightDisplayView.qml

@@ -14,7 +14,7 @@ import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
 import QtLocation               5.6
 import QtPositioning            5.5
-import QtMultimedia             5.5
+import QtMultimedia             5.8
 
 import QGroundControl               1.0
 import QGroundControl.FlightDisplay 1.0

src/FlightDisplay/FlightDisplayViewUVC.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 import QtQuick                  2.7
-import QtMultimedia             5.5
+import QtMultimedia             5.8
 
 import QGroundControl           1.0
 

src/ui/preferences/GeneralSettings.qml

@@ -12,7 +12,7 @@ import QtQuick                  2.7
 import QtQuick.Controls         2.1
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtMultimedia             5.5
+import QtMultimedia             5.8
 import QtQuick.Layouts          1.3
 
 import QGroundControl                       1.0