Use AutoValue from external/auto am: 84052f24c4 am: 0a21d89f37 am: ac7a814e03 am: d9d83cbc48

Original change: https://android-review.googlesource.com/c/platform/tools/apifinder/+/1350863

Change-Id: If8c2fb07ea00c20bd946c924dbd153c6739c2267