Cross check CellIdentity w NetworkType in RegState

Add a variety of cross-checks to ensure that the HAL is
reporting a valid combination of the network type and
the CellIdentity. If not, report an Anomaly and coerce
the NetworkType based on the less-fudge-able CellIdentity.

Bug: 202851802
Test: atest CellularNetworkServiceTest#testNetworkTypeForCellIdentity
Change-Id: Iae06e7824a8796dba9c0744885d45cd4ffc589ea