Merge changes from topic "nnapi-cherrypick-from-pi-to-aosp"

* changes:
  Free wrapper resource before assignment
  Add test for dimensions unknown at compile time
  Fix the error code ANEURALNETWORKS_UNMAPPABLE
  Sync updated NNAPI doc to HAL -- script
  Remove inconsistent references to "type" in NNAPI
  Script syncing of types.hal from NeuralNetworks.h
  Fix failing test by rerunning test generator
  Fix slicing.sh for new directory structure
  Create _relaxed tests for newly added tests -- generated tests
  Error code fix and added new (std::nothrow) where needed.
  Create _relaxed tests for newly added tests
  Fixed an error in LSTM documentation on peephole
  Update NNAPI OWNERS file -- runtime
  Document that RESIZE_BILINEAR will not force align corner pixels.
  Rewrite leak check for performance, selinux compliance
  Clarify Fully Connected Op comments and naming
  Make validateOperandType reject scale of 0.0f for QUANT8_ASYMM tensor
  Remove pointer values from the log and hide certain verbose logging unless building with NN_DEBUGGABLE.