On the Network & internet page, when you have multiple active SIMs we
add a header with an entry for each one. This CL sets the summary for
those entries to be a 1 or 2 line indication of what services (calls,
SMS, and data) that SIM is used for by default, or just an indication
that the SIM is available. And for the SIM used by default for data, we
include status information about whether it's connected or not.
Bug: 116349402
Test: make RunSettingsRoboTests
Change-Id: I46f37433f753724bbde8876f0d89c3155b2c3812
8fc473629a