Backup/restore owner info from locksettings

Backup the owner info string and whether or not
owner info is to be shown on the lockscreen.

Watch for changes to the two settings in LockSettingsService
and inform backup manager.

Bump up version numbers for the new entity.

Bug: 19300363
Change-Id: I35485c961d18b26be68873f4d5eeedc5ae513cc8
2 files changed