Fix http://b/issue?id=2085793

-Also fixes problems with the call button divider not disappearing when
the call button was gone.

-Also populates the typeList for the "fallback" source, for phone,
email, and postal DataKinds. The type lists are the unions of the focus
and exchange typeLists.

Change-Id: Idd68760d852e4accdcf3043007253e122bd5534b