Merge "add bp2build subevents" into main am: 7660e718 am: f819131f am:...

Merge "add bp2build subevents" into main am: 7660e718 am: f819131f am: 538754b2 am: d30a8188

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2647281



Change-Id: Ibef9bc108bbeafdd919e26d89a36b564a93971e4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>