shipping API version:
For devices shipped before Android P nothing changes, data
is stored under /data/system/users/<user-id>/fpdata/...
Devices shipped from now on will instead store
fingerprint data under /data/vendor_de/<user-id>/fpdata.
Support for /data/vendor_de and /data/vendor_ce has been added to vold.
Bug: 36997597
Change-Id: I615e90d1c9ab08e768a8713968fa043598a0a526
Test: manually
Minimize overhead in boot by replacing shell script invoked multiple
times with a C++ program invoked once.
Bug: 67901036
Test: create user, run adb shell ls -laZ /data/misc_ce/10; delete user
and check logs.
Change-Id: I886cfd6505cca1f5b5902f2071e13f48e612214d