Merge "Support Dual ViLTE stats" am: df875106a7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1540920

Change-Id: Ie65e2a2530b3e10b1cb7b571bbe4e7255caf1b08
tree: 8a3a704d76c6516350a01b4f4a56a80cfb1990f6
  1. core/
  2. services/