klte-common: Stop using voice paths for VOIP.

  Some apps like Tango were getting the wrong paths
  for calls.  Allow use of VOIP paths to enable the
  correct TX and RX devices.

Change-Id: I20d4d00aaf9c49ef4c7f1f3b24fbd667a7d91cb4
(cherry picked from commit c4d85f89c3fe655dfcb43264f5804accc9e88822)