Allow sensors list to be empty am: 427b5c36

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23677155



Change-Id: I4a1ae5c6f5ad3c6fc5e69d9163ec07456868c7a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>