Update TensorFlow to v2.2.0-rc2

Author: FloopCZ

README.md

@@ -1,6 +1,6 @@
 # tensorflow_cc
 [![Build Status](http://ash.floop.cz:8080/buildStatus/icon?job=tensorflow_cc)](http://ash.floop.cz:8080/job/tensorflow_cc/)
-[![TF version](https://img.shields.io/badge/TF%20version-2.2.0%20rc1-brightgreen.svg)]()
+[![TF version](https://img.shields.io/badge/TF%20version-2.2.0%20rc2-brightgreen.svg)]()
 
 This repository makes possible the usage of the [TensorFlow C++](https://www.tensorflow.org/api_docs/cc/) API from the outside of the TensorFlow source code folders and without the use of the [Bazel](https://bazel.build/) build system.
 

tensorflow_cc/CMakeLists.txt

@@ -8,8 +8,8 @@ project(
 # If enabled, bazel has to be installed.
 option(ALLOW_CUDA "Try to find and use CUDA." ON)
 option(REQUIRE_CUDA "Make sure to find and use CUDA (implies ALLOW_CUDA)." OFF)
-set(TENSORFLOW_TAG "v2.2.0-rc1" CACHE STRING "The tensorflow release tag to be checked out (default v2.2.0-rc1).")
-# TODO use ${version} when not -rc1
+set(TENSORFLOW_TAG "v2.2.0-rc2" CACHE STRING "The tensorflow release tag to be checked out (default v2.2.0-rc2).")
+# TODO use ${version} when not -rc2
 set(TARGET_CXX_STANDARD "cxx_std_11" CACHE STRING "C++ standard to be enforced when linking to TensorflowCC targets (e.g., cxx_std_11).")
 
 # -------------