fix gelu compile on CUDA 10 (#39045)

paddle/fluid/operators/gelu_op.cu

@@ -24,7 +24,7 @@ namespace operators {
 #ifdef __NVCC__
 template <bool FastMode>
 static __device__ __forceinline__ float FP32FastTanh(float x) {
-#if __CUDA_ARCH__ >= 750 && !defined(_WIN32)
+#if __CUDA_ARCH__ >= 750 && CUDA_VERSION >= 11000 && !defined(_WIN32)
   if (FastMode) {
     float y;
     asm("tanh.approx.f32 %0,%1; \n\t" : "=f"(y) : "f"(x));