When a SIM is changed check mobile provisioning.

A simple mechanism for doing this is to take advantage of the fact
that we require the device to reboot after a sim has been changed.
Thus when connectivity service is started we wait to get a connection
then call checkMobileProvisioning once. We also add a check that
the DEVICE_PROVISIONED is true, i.e. SetupWizard has been run.

Bug: 9784024
Change-Id: I5c1936744f6fc55a447ae44cd36eec3849d27e21