[automerge] Update char limits for new UDFPS enroll strings 2p: 4592bf62a3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/15763831

Bug: 198847997
Change-Id: Ib88caa522f11d1be6bc3ef9479cfdefe4eabf10a