DO NOT MERGE. Implement connection error dialogs (1/4)

Implement reporting of connection errors from ConnectionServices through
Telecomm to the InCallUI.

Bug: 15195720
Bug: 15117141
Change-Id: I0e1443f75a175a212fb19afde5a7eadef15d239d
(cherry picked from commit 976bfe497da31fa8322969648ffbe77898941d0c)
9 files changed