NNAPI SL Benchmark - Add option to specify vendor [4/n]. am: 6192b242a1

Original change: https://android-review.googlesource.com/c/platform/test/mlts/benchmark/+/2096397

Change-Id: Icf6517d3669817ee168e5eaddbc18153ec62d52c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>