NNAPI SL Benchmark - Add option to specify vendor [3/n]. am: 3a8f029f72

Original change: https://android-review.googlesource.com/c/platform/test/mlts/benchmark/+/2096396

Change-Id: I21b03f7dd70d404fcc41db34e4106bf780e5c51c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>