Debugger: Initialize members of DebuggerItemConfigWidget

Change-Id: I445b9fd6d343fca8f03ba1d8b163d31970a7ff7e
Reviewed-by: hjk <hjk@qt.io>

src/plugins/debugger/debuggeritemmanager.cpp

@@ -126,8 +126,8 @@ private:
     PathChooser *m_binaryChooser;
     PathChooser *m_workingDirectoryChooser;
     QLineEdit *m_abis;
-    bool m_autodetected;
-    DebuggerEngineType m_engineType;
+    bool m_autodetected = false;
+    DebuggerEngineType m_engineType = NoEngineType;
     QVariant m_id;
 };