NNAPI VTS update in response to utility function change

The frameworks/ml/nn CL "Improve performance of Burst executions"
changed the signature of a utility function used by NNAPI's VTS tests.
This CL modifies the test accordingly.

Bug: 132073143
Test: mma
Test: VtsHalNeuralnetworksV1_2TargetTest (with sample-all)
Test: VtsHalNeuralnetworksV1_3TargetTest (with sample-all)
Change-Id: I56c3b04e6fec11d526e2a1ff5b896f31cb12eb5f