Update bluetooth perm checking to perm cache

We were soaking the non-forward-fix sysprop solution for stability, but
now put the durable solution in place -- use the new permission checking
utils to check CONNECT_BLUETOOTH to decide whether or not to anonymize
the bt address.

Test: Manual repro using the POC app
Bug: 285588444
Flag: EXEMPT security
Change-Id: Id2c4b8136bcb408e119bc360d4ae37b38299e162