Add CarrierWifi metrics

Updated-PDD: TRUE
Bug: 145762500
Test: atest com.android.server.wifi

Merged-In: I11a60c877cd0a7594a4a691207e89935f35fe22e
Change-Id: Ifd03a0e6d15d777e632f000c07a666d1d5491d6c
5 files changed