Merge "Sanitize more of the notification text fields" into qt-qpr1-dev am:...

Merge "Sanitize more of the notification text fields" into qt-qpr1-dev am: 3830f121 am: c6ee95fd am: 7012fe44 am: 7a8fe1d4

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

Change-Id: I44930f3e163d14ce9574774ecc9babbef0cc8b7d