[SIMD] Switch solver.hh to the new interface.

dune/istl/preconditioners.hh

@@ -10,6 +10,7 @@
 #include <memory>
 #include <string>
 
+#include <dune/common/simd.hh>
 #include <dune/common/unused.hh>
 
 #include "preconditioner.hh"

dune/istl/solver.hh

@@ -9,7 +9,7 @@
 
 #include <dune/common/exceptions.hh>
 #include <dune/common/shared_ptr.hh>
-#include <dune/common/simd.hh>
+#include <dune/common/simd/simd.hh>
 
 #include "solvertype.hh"
 #include "preconditioner.hh"
@@ -103,7 +103,7 @@ namespace Dune
     typedef typename FieldTraits<field_type>::real_type real_type;
 
     //! \brief scalar type underlying the field_type
-    typedef SimdScalar<real_type> scalar_real_type;
+    typedef Simd::Scalar<real_type> scalar_real_type;
 
     /**
         \brief Apply inverse operator,