Merge "Sanitize more of the notification text fields" into qt-dev am: e07950e2d8 am: e059ae5659 am: 77bc18485c

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

Change-Id: Ie854ad8234419e6b8200e0cadb235bb5c4c97b5e