Merge "aconfig: add proto `bug` field" am: 37cb74b3

Original change: https://android-review.googlesource.com/c/platform/build/+/2634549



Change-Id: I0c846a9c290ab59f1dc3a46e9d519f9a318c5793
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>