fix dcnv2 trt8 compile error (#36850)

paddle/fluid/inference/tensorrt/plugin/deformable_conv_op_plugin.cu

@@ -360,7 +360,7 @@ void gemm_impl<half>(cublasHandle_t handle, cublasOperation_t transa,
 template <typename T>
 int DeformableConvPlugin::enqueue_impl(int batch_size,
                                        const void* const* inputs,
-                                       void** outputs, void* workspace,
+                                       void* const* outputs, void* workspace,
                                        cudaStream_t stream) {
   const T* input = reinterpret_cast<const T*>(inputs[0]);
   const T* offset = reinterpret_cast<const T*>(inputs[1]);
@@ -527,8 +527,6 @@ nvinfer1::IPluginV2Ext* DeformableConvPlugin::clone() const TRT_NOEXCEPT {
                                   offset_dim_, mask_dim_, output_dim_);
 }
 
-DeformableConvPluginCreator::DeformableConvPluginCreator() TRT_NOEXCEPT {}
-
 void DeformableConvPluginCreator::setPluginNamespace(const char* lib_namespace)
     TRT_NOEXCEPT {
   namespace_ = std::string(lib_namespace);

paddle/fluid/inference/tensorrt/plugin/deformable_conv_op_plugin.h

@@ -91,8 +91,8 @@ class DeformableConvPlugin : public nvinfer1::IPluginV2Ext {
 
  private:
   template <typename T>
-  int enqueue_impl(int batch_size, const void* const* inputs, void** outputs,
-                   void* workspace, cudaStream_t stream);
+  int enqueue_impl(int batch_size, const void* const* inputs,
+                   void* const* outputs, void* workspace, cudaStream_t stream);
   nvinfer1::Weights copyToDevice(const void* hostData, size_t count);
   void serializeFromDevice(void** hostBuffer,
                            const nvinfer1::Weights& deviceWeights) const;
@@ -119,7 +119,7 @@ class DeformableConvPlugin : public nvinfer1::IPluginV2Ext {
 
 class DeformableConvPluginCreator : public nvinfer1::IPluginCreator {
  public:
-  DeformableConvPluginCreator();
+  DeformableConvPluginCreator() = default;
   ~DeformableConvPluginCreator() override = default;
 
   void setPluginNamespace(const char* lib_namespace) TRT_NOEXCEPT override;