Added edited status to APN setting

Expose APN edited status from the database to ApnSetting class.
Also suppress APN related anomaly reports if the APN is edited
by the user.

Fix: 289212683
Test: Manually tested user input APN on T-Mobile
Test: Basic telephony functionality tests
Change-Id: Ibcc9f9c8db2af522f7926d31b0e86bc2c7b19bc6