AutoPilotPlugins: Use QElapsedTimer over deprecated QTime::start

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

src/AutoPilotPlugins/Common/RadioComponentController.cc

@@ -15,6 +15,7 @@
 #include "RadioComponentController.h"
 #include "QGCApplication.h"
 
+#include <QElapsedTimer>
 #include <QSettings>
 
 QGC_LOGGING_CATEGORY(RadioComponentControllerLog, "RadioComponentControllerLog")

src/AutoPilotPlugins/Common/RadioComponentController.h

@@ -310,7 +310,7 @@ private:
     int     _stickDetectInitialValue;
     int     _stickDetectValue;
     bool    _stickDetectSettleStarted;
-    QTime   _stickDetectSettleElapsed;
+    QElapsedTimer   _stickDetectSettleElapsed;
     static const int _stickDetectSettleMSecs;
 
     bool        _unitTestMode   = false;