v5: prefix non-static internal functions with apf_internal_ am: 5668effc01 Original change: https://android-review.googlesource.com/c/platform/hardware/google/apf/+/2986089 Change-Id: I35b9f37a234ab982e70b6504833ff3a866c61666 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>