Move BT, NFC preference out of Connection Preference,
To Connected devices page.
Because NFC and Android Beam are controlled by the same controller,
Create each controller for those preference and leave the sharing part.
Change-Id: I8bc303a5f487de9c667487119b49e1e4130aa80c
Fixes: 72458929
Test: manually test, make RunSettingsRoboTests
