Fixed Coverity issues found in NPUW (#27552)

### Details:
 - *Fixed `AUTO_CAUSES_COPY` issues found in NPUW by Coverity*
 
### Tickets:
 - *EISW-146516*

Author: AsyaPronina

src/plugins/intel_npu/src/plugin/npuw/just_sync_infer_request.cpp

@@ -783,9 +783,6 @@ void ov::npuw::JustInferRequest::unsafe_infer(std::size_t real_idx) {
 
             // Now copy the views from the output full-nway tensor to the output tensors
             for (std::size_t out_idx = 0u; out_idx < num_outputs; out_idx++) {
-                const auto& oport = comp_model_desc.compiled_model->outputs()[out_idx];
-                auto spatial_tensor_shape = oport.get_shape();
-
                 auto in_view = ov::npuw::util::view(m_spatial_io[real_idx].output_tails.at(out_idx),
                                                     spatial.out_dim,
                                                     0,

src/plugins/intel_npu/src/plugin/npuw/partitioning/patterns/compute.cpp

@@ -247,8 +247,8 @@ DQMatMulConv::DQMatMulConv(const std::shared_ptr<ov::npuw::online::Snapshot>& sn
     auto callback = [=](ov::pass::pattern::Matcher& m) {
         auto& node_to_output = m.get_pattern_value_map();
 
-        auto matched_node_param = node_to_output.at(param);
-        auto matched_node_param2 = node_to_output.at(param2);
+        const auto& matched_node_param = node_to_output.at(param);
+        const auto& matched_node_param2 = node_to_output.at(param2);
 
         auto matched_node_transpose_in = node_to_output.at(transpose_in).get_node_shared_ptr();
         auto matched_node_transpose_out = node_to_output.at(transpose_out).get_node_shared_ptr();

src/plugins/intel_npu/src/plugin/npuw/partitioning/patterns/dcoff.cpp

@@ -709,7 +709,7 @@ DCOFFPassReshape4::DCOFFPassReshape4(DCOffMode dcoff_mode, ov::element::Type dco
         auto matched_paramA = std::static_pointer_cast<ov::op::v0::Parameter>(matched_nodeA);
         auto matched_paramC = std::static_pointer_cast<ov::op::v0::Parameter>(matched_nodeC);
 
-        auto matched_out_mulply = node_to_output.at(mulply);
+        const auto& matched_out_mulply = node_to_output.at(mulply);
 
         if (ov::element::i4 == matched_paramA->get_element_type() &&
             (ov::element::f16 == matched_paramC->get_element_type() ||

src/plugins/intel_npu/src/plugin/npuw/partitioning/patterns/opt.cpp

@@ -166,8 +166,8 @@ DQMatMulCWi::DQMatMulCWi(Context::Ref ctx) {
             auto matched_node_cvtw = node_to_output.at(qcvtw).get_node_shared_ptr();
             auto matched_node_muls = node_to_output.at(qmuls).get_node_shared_ptr();
             auto matched_node_mmi = node_to_output.at(qmmi).get_node_shared_ptr();
-            auto matched_node_qcoeff_out = uat::_(node_to_output).at_or_at_or_at(qcvtc, reshapec, qcoeff);
-            auto matched_node_muls_out = uat::_(node_to_output).at_or_at(qcvtm, qmuls);
+            auto& matched_node_qcoeff_out = uat::_(node_to_output).at_or_at_or_at(qcvtc, reshapec, qcoeff);
+            auto& matched_node_muls_out = uat::_(node_to_output).at_or_at(qcvtm, qmuls);
 
             if (!ctx.get().mm_dq_full) {
                 const auto& matm_mul_out_shape = matched_matmul->get_output_shape(0);
@@ -1432,7 +1432,7 @@ SliceLastMatmul::SliceLastMatmul() {
     auto callback = [=](ov::pass::pattern::Matcher& m) {
         auto& node_to_output = m.get_pattern_value_map();
 
-        auto matched_out_matmul = node_to_output.at(matmul);
+        auto& matched_out_matmul = node_to_output.at(matmul);
 
         auto shape = matched_out_matmul.get_node()->input(0).get_shape();
 
@@ -1468,7 +1468,7 @@ SliceLastMatmulAdd::SliceLastMatmulAdd() {
     auto callback = [=](ov::pass::pattern::Matcher& m) {
         auto& node_to_output = m.get_pattern_value_map();
 
-        auto matched_out_matmul = node_to_output.at(matmul);
+        auto& matched_out_matmul = node_to_output.at(matmul);
 
         auto shape = matched_out_matmul.get_node()->input(0).get_shape();
 
@@ -1504,7 +1504,7 @@ SliceLastMatmulTranspose::SliceLastMatmulTranspose() {
     auto callback = [=](ov::pass::pattern::Matcher& m) {
         auto& node_to_output = m.get_pattern_value_map();
 
-        auto matched_out_matmul = node_to_output.at(matmul);
+        auto& matched_out_matmul = node_to_output.at(matmul);
 
         auto shape = matched_out_matmul.get_node()->input(0).get_shape();
 
@@ -1542,7 +1542,7 @@ SliceLastMatmulMultiply::SliceLastMatmulMultiply() {
     auto callback = [=](ov::pass::pattern::Matcher& m) {
         auto& node_to_output = m.get_pattern_value_map();
 
-        auto matched_out_matmul = node_to_output.at(matmul);
+        auto& matched_out_matmul = node_to_output.at(matmul);
 
         auto shape = matched_out_matmul.get_node()->input(0).get_shape();
 

src/plugins/intel_npu/src/plugin/npuw/spatial.cpp

@@ -13,7 +13,7 @@ ov::npuw::runtime::spatial::AttentionMask::AttentionMask(std::size_t param_idx,
 ov::npuw::runtime::spatial::Selector::Ptr ov::npuw::runtime::spatial::AttentionMask::find(
     const ov::ISyncInferRequest& rq) {
     auto is_attn_mask = [](const ov::Output<const ov::Node>& p) {
-        const auto shape = p.get_shape();
+        const auto& shape = p.get_shape();
         return p.get_node()->get_friendly_name() == "attention_mask" &&
                (shape.size() == 1 || (shape.size() == 2 && shape[0] == 1));
     };

src/plugins/intel_npu/src/plugin/npuw/util.cpp

@@ -336,7 +336,7 @@ ov::SoPtr<ov::ITensor> ov::npuw::util::view(const ov::SoPtr<ov::ITensor>& src,
         view_shape.push_back(to[d] - from[d]);
     }
 
-    const auto strides = src->get_strides();
+    const auto& strides = src->get_strides();
     uint8_t* ptr = static_cast<uint8_t*>(src->data());
 
     // Shift PTR according to the strides
@@ -352,7 +352,7 @@ ov::SoPtr<ov::ITensor> ov::npuw::util::view(const ov::SoPtr<ov::ITensor>& src,
                                             std::size_t dim,
                                             std::size_t offset,
                                             std::size_t len) {
-    const auto shape = src->get_shape();
+    const auto& shape = src->get_shape();
     View view_start = View(shape.size(), 0u);
     View view_end = shape;
     view_start[dim] = offset;