Merge "Sanitize more of the notification text fields" into qt-qpr1-dev am: 3830f121 am: c6ee95fd am: 7012fe44

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12512484

Change-Id: I73f0d94af00a4b4620ae81011f8d885ab4338082