fix torch_npu adpater

Author: momo609

mmcv/ops/csrc/common/pytorch_npu_helper.hpp

@@ -26,6 +26,17 @@
 
 #define NPU_NAME_SPACE at_npu::native
 
+c10::SmallVector<int64_t, SIZE> array_to_small_vector(c10::IntArrayRef shape)
+{
+  c10::SmallVector<int64_t, SIZE> shape_small_vec;
+  for (int i = 0; i < shape.size(); i++)
+  {
+    shape_small_vec.emplace_back(shape[i]);
+  }
+
+  return shape_small_vec;
+}
+
 #ifdef MMCV_WITH_XLA
 #define REGISTER_NPU_IMPL(key, value) REGISTER_DEVICE_IMPL(key, XLA, value)
 #else