Merge pull request #3389 from s-barannikov/initialize_dyn_pad_mode

Add missing initialization of pad mode in DynPad constructor

src/ngraph/op/experimental/dyn_pad.cpp

@@ -25,8 +25,9 @@ op::DynPad::DynPad(const std::shared_ptr<Node>& arg,
                    const std::shared_ptr<Node>& padding_below,
                    const std::shared_ptr<Node>& padding_above,
                    const std::shared_ptr<Node>& padding_value,
-                   op::PadMode pad_mode)
+                   PadMode pad_mode)
     : Op(check_single_output_args({arg, padding_below, padding_above, padding_value}))
+    , m_pad_mode(pad_mode)
 {
     constructor_validate_and_infer_types();
 }