Trying to add more than 4 fingerprints per user causes the Udfps
overlay to not appear and shows the following message in logs:
`E Biometrics/EnrollClient: Reached enrollment limit`.
Change-Id: I26707d5b50b28d032b117e22ba703c5fc0dfe3a2
lynx has peak refresh rate higher than
60 Hz, so allow users to toggle high-refresh rate like on stock.
Change-Id: I7fcbb905b61575de8c5e9d9a935463932551fb6a