bravo: Move old phone config.xml overlay to new KITKAT location

    Move overlay from packages/apps/Phone to packages/services/Telephony.
    Remove default overlay values.
    (send_mic_mute_to_AudioManager == true is needed for audioManager.isMicrophoneMute()
     which does show the wrong mute state for active calls otherwise)
Change-Id: I3fae86e5c50e990dfd02c1349f842dc5b4c9e5bd