Solve compilation issue in gcc11 due to struct

Tracking/Acts/ActsVertexReconstruction/src/AdaptiveMultiPriVtxFinderTool.cxx

@@ -81,7 +81,9 @@ ActsTrk::AdaptiveMultiPriVtxFinderTool::initialize()
     Acts::AnnealingUtility annealingUtility(annealingConfig);
 
     // Linearizer for Acts::BoundParameters type test
-    TrackLinearizer::Config ltConfig(bField, m_propagator);
+    TrackLinearizer::Config ltConfig;
+    ltConfig.bField = bField;
+    ltConfig.propagator = m_propagator;
     m_linearizer.emplace(ltConfig);
 
     // Vertex fitter configuration

Tracking/Acts/ActsVertexReconstruction/src/IterativePriVtxFinderTool.cxx

@@ -74,7 +74,9 @@ ActsTrk::IterativePriVtxFinderTool::initialize()
   Acts::ImpactPointEstimator ipEst(ipEstCfg);
 
   // Linearizer for Acts::BoundParameters type test
-  TrackLinearizer::Config ltConfig(m_bField, m_propagator);
+  TrackLinearizer::Config ltConfig;
+  ltConfig.bField = m_bField;
+  ltConfig.propagator = m_propagator;
   m_linearizer.emplace(ltConfig);
 
   // Full Billoir Vertex fitter setup