Telephony: IT translations

Change-Id: I2409db5e433014f96d765a2baea94a06cd81003a
BT: Multi HF support for BluetoothManager in Telephony.

This patch adds multi hf support in Telephony.
Returns AudioOn state and Connection state for
specific HS.

Change-Id: I1d19111bbf9728675800e356e8bd7652006e2e59