NNAPI Concurrent Query Management -- HAL and VTS update

The NNAPI requires requests on a model to be asynchronously
processed. This CL implements a basic Event that can later
be used to block the runtime thread until the asynchronous
request has completed.

Bug: 63905942
Test: VtsHalNeuralnetworksV1_0TargetTest (32-bit, 64-bit) with sample driver enabled by cherry-pick
      frameworks/ml/nn/runtime/test with and without sample driver enabled
Change-Id: Ie27a574aaaac312e7cbb731750f9c06278357a1c

1 files changed, 5 insertions, 0 deletions

diff --git a/neuralnetworks/1.0/types.hal b/neuralnetworks/1.0/types.hal
index 77f1021c..61af70b0 100644
--- a/neuralnetworks/1.0/types.hal
+++ b/neuralnetworks/1.0/types.hal
@@ -181,3 +181,8 @@ struct Request {
     vec<InputOutputInfo> outputs;
     vec<memory> pools;
 };
+
+enum Status : uint32_t {
+    SUCCESS,
+    ERROR,
+};