Refine NFC charging APIs

- rename WlcLDeviceInfo to WlcListenerDeviceInfo
- add javadoc for methods in WlcListenerDeviceInfo
- use IntDef for WlcListenerDeviceInfo#getState
- change productId from double to int
- rename enableWlc to setWlcEnabled

Bug: 318483507
Test: Compiles
Change-Id: I411fcc7bd63b3eb62ba2c833d8d76a8e1408199f