Merge "Sanitize more of the notification text fields" into qt-qpr1-dev am: 3830f1214c am: c6ee95fd2d am: 7012fe4440 am: 7a8fe1d4ca am: cd3ff7a89e

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

Change-Id: I0ecf04ded7f1be048bad8cf7361d397c6a46eef5