Update learn more string for udfps fp settings am: c6c9d74f am: 8b294007 am: 462d171b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/24156551



Change-Id: I71f082e01a457b880c22f9c55df4d5b4dfb9a21f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>