Trigger carrier config update if carrier id changes.

It is triggered only if carrier id change is not due to normal
SIM loading sequence, that is in case of APN or carrier id db
change.

Test: manually verified failing scenario works correctly now
Test: atest CarrierResolverTest
Bug: 155426801
Change-Id: I614edc291db7962ea0559ef571f98cab67869e44
3 files changed