Bluetooth: Set alias name only through Rename option

Set the alias name only when user is trying to change the
name using the Rename option of paired device.

CRs-Fixed: 539420
Change-Id: I415b6a962d8e7884b67d37b94c04df19e2c23012
1Settings: 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