Adding clcc request support for Bluetooth Phone Service.

This change gives additional information about calls to the bluetooth
headset so that BT devices that can show more info (e.g., cars) will
show it.  This change puts BluetoothPhoneService at par with K release.

Bug:17475562
Change-Id: I0dd4e4e978687b25692d1dbe060db45a825184c0