Sets up callback to associate an LE-only device with its identity

address in the Java layer.

This makes sure the BluetoothDevice#getIdentityAddress API works
for LE-only devices.

Tag: #feature
Bug: 231991394
Test: Manual (QA Regression + functional testing)
Merged-In: I9655363c91879b147211b89760f3fdf06f026b08
Change-Id: I9655363c91879b147211b89760f3fdf06f026b08