Fix use of new LinearSolver for FMI export

Author: rfranke

SimulationRuntime/cpp/Include/FMU2/FMU2GlobalSettings.h

@@ -72,7 +72,7 @@ class FMU2GlobalSettings : public IGlobalSettings
   virtual void            setOutputPath(string) {}
   virtual string          getSelectedSolver() { return "euler"; }
   virtual void            setSelectedSolver(string) {}
-  virtual string          getSelectedLinSolver() { return DEFAULT_NLS; }
+  virtual string          getSelectedLinSolver() { return "dgesvSolver"; }
   virtual void            setSelectedLinSolver(string) {}
   virtual string          getSelectedNonLinSolver() { return DEFAULT_NLS; }
   virtual void            setSelectedNonLinSolver(string) {}