Merge "aconfig: add proto `bug` field" am: 37cb74b3 am: 4a294a65 am: 4c30c593 am: 3f0151dc

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



Change-Id: I4d3a102616868a634c369f6a9ab3f2a2dbca0005
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>