Settings: Pimp up Notification Labels Hide [1/2]

This adds fine grain priorities to hide the labels in the notification
drawer in the following ways:

- Show all Labels
- Hide Carrier Label
- Hide WiFI Lable
- Hide all Labels

PS:
- rebase

Change-Id: I7ca279575b7a26fb87d2e966160d895e169d6e92
Settings: fix NPE with null check on NFC adapter

Verifies the adapter is not null before dereferencing it and log and error if so

PS:
- fix codestyle and rebase

Change-Id: Id2a34c4698a97476bee9b78cb0ac7b980d1595cf