Merge "Add comments to bpf properties" am: a2f3b77a

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2183477



Change-Id: I9cf90f267fb47d4fb8e88d461e40f5c7d225e660
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>