tdf#91715: lock SolarMutex from dbaui::~ODatabaseAdministrationDialog()

Change-Id: I91b78ec3a19b6f09ae6e9ff723ebda41d656f2fc
(cherry picked from commit 0a7375e3)
Signed-off-by: Michael Stahl <mstahl@redhat.com>

svtools/source/uno/genericunodialog.cxx

@@ -313,6 +313,7 @@ void SAL_CALL OGenericUnoDialog::initialize( const Sequence< Any >& aArguments )
 
 void OGenericUnoDialog::destroyDialog()
 {
+    SolarMutexGuard aSolarGuard;
     m_pDialog.disposeAndClear();
 }