The provider model slice carrier toggle is broke.

The slice doesn't upload subId for TelephonyManager and
the listeners.

Bug: 177385874
Test: (PASS)atest NetworkProviderWorkerTest
(PASS)atest ProviderModelSliceTest
(PASS)atest ProviderModelSliceHelperTest

Change-Id: Icc8a7793204de2e2eadd0454edf50e466821b8f9
5 files changed