Add control flow tests with unknown dimensions

Bug: 132458982
Bug: 154597673
Test: NNT_static --gtest_filter='*unknown_*'
Change-Id: I514b78ee3cf2efd86a47412e413a6873341a59d0
9 files changed
tree: 4f9b809ace6ecd73086338867c482c648e6c7cf3
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. CPPLINT.cfg
  5. OWNERS
  6. PREUPLOAD.cfg