NPUW: Fix SPATIAL execution mode (#28862)

### Details:
- This is mainly a workaround, but it allows to keep using strided
tensors without a copy.

### Tickets:
 - *E-156237*, *E-156237*

Author: dmatveev

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

@@ -733,9 +733,10 @@ void ov::npuw::JustInferRequest::unsafe_infer(std::size_t real_idx) {
             // Collect spatial inputs for this offset
             for (auto&& param : spatial.params) {
                 const auto& iport = comp_model_desc.compiled_model->inputs()[param.idx];
-                r->set_tensor(
-                    iport,
-                    ov::npuw::util::view(m_spatial_io[real_idx].inputs.at(param.idx), param.dim, offset, spatial.nway));
+                const auto& iview = ov::npuw::util::view(m_spatial_io[real_idx].inputs.at(param.idx),
+                                                         param.dim, offset,
+                                                         spatial.nway);
+                r->set_tensor(iport, iview);
             }  // for(params)
 
             // Now set the spatial outputs

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

@@ -360,11 +360,32 @@ ov::SoPtr<ov::ITensor> ov::npuw::util::view(const ov::SoPtr<ov::ITensor>& src,
                                             std::size_t offset,
                                             std::size_t len) {
     const auto& shape = src->get_shape();
+    NPUW_ASSERT(dim < shape.size());
     View view_start = View(shape.size(), 0u);
     View view_end = shape;
     view_start[dim] = offset;
     view_end[dim] = offset + len;
-    return ov::npuw::util::view(src, view_start, view_end);
+
+    auto ret_view = ov::npuw::util::view(src, view_start, view_end);
+
+    // Check if a tensor view can be faked as "continuous"
+    // FIXME: This trick should be removed after strided tensor
+    // checks are relaxed
+    if (std::all_of(shape.begin(), shape.begin() + dim, [](std::size_t d) { return d == 1u; })) {
+        // If all dimensions up to the sub-ranged dimension are 1s,
+        // This tensor can be faked as continuous
+        const auto type = src->get_element_type();
+        const auto view_shape = ret_view->get_shape();
+        ov::Strides fake_strides(shape.size());
+        fake_strides.back() = type.size();
+        std::transform(view_shape.crbegin(),
+                       view_shape.crend() - 1,
+                       fake_strides.rbegin(),
+                       fake_strides.rbegin() + 1,
+                       std::multiplies<size_t>());
+        return ov::get_tensor_impl(ov::Tensor(type, view_shape, ret_view->data(), fake_strides));
+    }
+    return ret_view;
 }
 
 template <typename InT>