Merge "Add support for tombstone symbolization to pbtombstone." into main am: f59ca8c2

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3005886



Change-Id: I39c813bb5b8856b0c7b2b7f2bd5b7ce5a3173258
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>