Merge "Trim any long string inputs that come in to AutomaticZenRule" into tm-dev am: de7b49d1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19816377



Change-Id: I8e5403cb24fa43ff6bedadab41d14470c1884b2e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>