Merge "Sanitize more of the notification text fields" into pi-dev am: c0ec138c47 am: 06adb3f55c am: 7e4fa5e87d am: b6380403ea am: 01b521197a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12512485

Change-Id: I9d2f42b28d30d1cde458b2f3ea77c9ca7b9dcbf6