!284 dts: slice kernel outputdesc bug

From: @wangwenhua1
Reviewed-by: @xchu42,@ji_chen
Signed-off-by:

ge/host_kernels/slice_kernel.cc

@@ -100,7 +100,9 @@ Status SliceKernel::Compute(const OpDescPtr attr, const std::vector<ConstGeTenso
   }
   // construct tensorDesc
   ge::GeShape output_shape(output_dims);
-  GeTensorDesc output_tensor_desc(output_shape, FORMAT_NCHW, data_type);
+  auto attr_output_tensor_desc = attr->GetOutputDesc(0);
+  GeTensorDesc output_tensor_desc(attr_output_tensor_desc);
+  output_tensor_desc.SetShape(output_shape);
   GeTensorPtr output_ptr = MakeShared<GeTensor>(output_tensor_desc);
   if (output_ptr == nullptr) {
     GELOGW("make_shared ge::GeTensor failed, node name %s.", attr->GetName().c_str());