Allow ImsService to return network error codes

Adds new API for SMS over IMS that allows the ImsService
to pass 3GPP TS 24.011 error codes from the network for
better debugging/metrics collection.

Test: manual
Bug: 138239529
Merged-In: I5d1f41b90595238011eb0d1dc0ae0415157bb469
Change-Id: I5d1f41b90595238011eb0d1dc0ae0415157bb469
3 files changed