Align 4d tensor for use_new_shape_infer false

Author: kelvinchoi-intel

src/plugins/intel_gpu/src/graph/eltwise.cpp

@@ -396,6 +396,9 @@ eltwise_inst::typed_primitive_inst(network& network, eltwise_node const& node) :
         bool use_new_shape_infer = network.get_config().get_property(ov::intel_gpu::allow_new_shape_infer);
         auto input0_pshape = node.get_input_pshape(0);
 
+        if (!use_new_shape_infer && input0_pshape.size() < 4)
+            input0_pshape.insert(input0_pshape.end(), 4 - input0_pshape.size(), 1);
+
         for (size_t i = 1; i < inputs_count; ++i) {
             auto input_pshape = node.get_input_pshape(i);
 
@@ -410,11 +413,7 @@ eltwise_inst::typed_primitive_inst(network& network, eltwise_node const& node) :
             auto base_pshape = input0_pshape;
             if (prim->broadcast_spec == ov::op::AutoBroadcastType::NUMPY &&
                 base_pshape.size() < input_pshape.size()) {
-                if (use_new_shape_infer) {
-                    base_pshape.insert(base_pshape.begin(), input_pshape.size() - base_pshape.size(), 1);
-                } else {
-                    base_pshape.insert(base_pshape.end(), input_pshape.size() - base_pshape.size(), 1);
-                }
+                base_pshape.insert(base_pshape.begin(), input_pshape.size() - base_pshape.size(), 1);
             }
 
             for (size_t d = 0; d < base_pshape.size(); ++d) {