LockSettingsService: fix names of user lifecycle methods

Rename some methods to avoid confusion.  No change in behavior.

Test: presubmit
Change-Id: I9885c934be4f99cf556aa6fcfadb6f65faf30e52
Merged-In: I9885c934be4f99cf556aa6fcfadb6f65faf30e52
(cherry picked from commit decb4ee36548649dd8ee7a631da891c3cda2a0b5)
3 files changed