Used LinkAddress insteaad of InterfaceAddress

Also removed InterfaceAddress which was added
in aosp/561351 since LinkAddress is exactly same
as InterfaceAddress.

Test: Telephony sanity tests
bug: 64132030
Merged-In: Iefc12dd025edb4f67cf0e9080da1ad8d6cfb63b5
Change-Id: Iefc12dd025edb4f67cf0e9080da1ad8d6cfb63b5
(cherry picked from commit 12967583)