Merge "Add limits on BlobHandle label and lease expiry strings." into rvc-dev am: 7434322aef am: 19bac42558

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12013588

Change-Id: I876a09b362041a7dfcac2b654ab5323a8daf8560