title: module 'tensorrt' has no attribute 'Logger'
body: <p>I am getting error in importing Logger() and Builder()</p>
  
  <p>I am on Jetson AGX Xavier.</p>
  
  <p>I have tried on python shell also. </p>
  
  <pre><code>import tensorflow.contrib.tensorrt as trt
  TRT_LOGGER = trt.Logger(trt.Logger.INFO)
  Traceback (most recent call last):
  File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  AttributeError: module 'tensorflow.contrib.tensorrt' has no attribute 'Logger'
  </code></pre>
  
  <p>I can NOT import trt.Builder() also.</p>
  
  <p>Python version is 3.6.7 </p>
  
  <p>Output of "dpkg -l | grep nvinfer" which gives Tensor RT version :</p>
  
  <pre><code>ii  libnvinfer-dev                             5.0.6-1+cuda10.0                                arm64        TensorRT development libraries and headers
  ii  libnvinfer-samples                         5.0.6-1+cuda10.0                                all          TensorRT samples and documentation
  ii  libnvinfer5                                5.0.6-1+cuda10.0                                arm64        TensorRT runtime libraries
  ii  python-libnvinfer                          5.0.6-1+cuda10.0                                arm64        Python bindings for TensorRT
  ii  python-libnvinfer-dev                      5.0.6-1+cuda10.0                                arm64        Python development package for TensorRT
  ii  python3-libnvinfer                         5.0.6-1+cuda10.0                                arm64        Python 3 bindings for TensorRT
  ii  python3-libnvinfer-dev 5.0.6-1+cuda10.0 arm64 Python 3 development package for TensorRT
  </code></pre>