Merge "Sanitize more of the notification text fields" into qt-dev am: e07950e2 am: e059ae56 am: 77bc1848

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12512682

Change-Id: Ifc27e87a2a1e62e167f3c753fe4df29244d6f002