message: Replace direct installation of Renode requirements with one based on requirements file
diff: @@ -31,16 +31,16 @@ Renode can be installed and used in a variety of ways, as documented
  [here](https://renode.readthedocs.io/en/latest/). For the purpose of Tensorflow
  Lite Micro, we make use of a portable version for Linux.
  - 1. Install the Renode test dependencies
  + 1. Download portable version of Renode for Linux:
  ```
  - pip3 install pyyaml requests psutil robotframework==3.1
  + tensorflow/lite/micro/testing/download_renode.sh tensorflow/lite/micro/tools/make/downloads/renode
  ```
  - 1. Download portable version of Renode for Linux:
  + 2. Install the Renode test dependencies
  ```
  - tensorflow/lite/micro/testing/download_renode.sh tensorflow/lite/micro/tools/make/downloads/renode
  + pip3 install -r tensorflow/lite/micro/tools/make/downloads/renode/tests/requirements.txt
  ```
  At this point in time you will be ready to run TFLM tests with Renode.
  