Show voicemail error messages for NUI

This CL shows the voicemail error messages for both VVM and OMTP type voicemails. It hooks upto the existing error framework and retrieves the voicemail error states and then displays it.

Bug: 71700117
Test: Unit Tests
PiperOrigin-RevId: 183301455
Change-Id: Ib2b7fb957fbfd2af2227747d327cef466259eb6f
5 files changed