Added support for the 1.2 IRadio APIs that support IWLAN handover. Test: Telephony sanity tests Bug: 64132030 Merged-In: I8c962bb45bc4d42610faa32f0ee36080e8e6cb65 Change-Id: I8c962bb45bc4d42610faa32f0ee36080e8e6cb65 (cherry picked from commit 08063d6c1bb64d2b65fe08bfc04d00f3f0fc856f)