[automerge] Update char limits for new UDFPS enroll strings 2p: 4592bf62a3 am: 4f2f0ed6d5

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

Change-Id: I5e527298abe4024bc5a8b1b42682e80a36c1e2a3