aml_hef_341114030 (10906182,com.google.android.healthfitness)
Fix NNAPI mlts test script to read output from /storage/emulated/0 instead am: f45ee41ec1 am: cfaaa90a22 am: 2065be179a

Original change: https://android-review.googlesource.com/c/platform/test/mlts/benchmark/+/2418599

Change-Id: I48134685b6ca788d042797487c51749843826096
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>