Backport NNTestBase.getAcceleratorNames from Method introduced in I8b4133fe9da41e7f69abe1dfa923f04c129711a4, fix for NNAPI benchmark timeouts on the android11-tests depends on this method. Merged-In: I8b4133fe9da41e7f69abe1dfa923f04c129711a4 Bug: 171020693 Test: Run NNAPI Benchmarks Change-Id: I5808c54e8cfabac20f809a7822b087dee3ad722e