fix #202

[PikachuHy]

When I compiled caffe, this error occurred.

/home/pikachu/swcontest/intel_caffe/src/caffe/layers/mkldnn_inner_product_layer.cpp:361:2: error: this ‘else’ clause does not guard... [-Werror=misleading-indentation]
  else
  ^~~~
/home/pikachu/swcontest/intel_caffe/src/caffe/layers/mkldnn_inner_product_layer.cpp:365:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘else’
     ipBwdData_desc.reset(new inner_product_backward_data::desc(init_bottom_md, init_weights_md, init_top_md));
     ^~~~~~~~~~~~~~

For more information, please refer to https://github.com/intel/caffe/issues/202