Add cc so carrier can opt to prefer an in-service sim for normal ecc call.

This carrier config is ultimately temporary and should be removed in a
future release in favor of just ALWAYS preferring an in-service sim for
a normal routed emergency call.

Test: See other CL in this chain for the tests performed.
Bug: 281934614
Bug: 299150073
Flag: This is a cherry-pick from udc-qpr-dev, so no flag is needed.
Change-Id: Iac9136dc2315617e612e55ca72026dcae16f232d