message: Backport: get vm_configuration from base_wasm if available.
diff: @@ -81,7 +81,7 @@ public:
  Upstream::ClusterManager& clusterManager() const { return cluster_manager_; }
  const std::string& code() const { return code_; }
  - const std::string& vm_configuration() const { return vm_configuration_; }
  + const std::string& vm_configuration() const;
  bool allow_precompiled() const { return allow_precompiled_; }
  void setInitialConfiguration(const std::string& vm_configuration) {
  vm_configuration_ = vm_configuration;
  @@ -330,6 +330,12 @@ WasmHandleSharedPtr getOrCreateThreadLocalWasm(WasmHandleSharedPtr base_wasm,
  absl::string_view configuration,
  Event::Dispatcher& dispatcher);
  +inline const std::string& Wasm::vm_configuration() const {
  + if (base_wasm_handle_)
  + return base_wasm_handle_->wasm()->vm_configuration_;
  + return vm_configuration_;
  +}
  +
  inline void* Wasm::allocMemory(uint64_t size, uint64_t* address) {
  Word a = malloc_(vm_context(), size);
  if (!a.u64_) {
  