Add logging to ECM in call checks

These will help guage the success of the feature. Also refactors the
call tracking to its own class.

Bug: 364535720
Test: manual
Flag: android.permission.flags.unknown_call_setting_blocked_logging_enabled
Relnote: none
LOW_COVERAGE_REASON=FLAG_NOT_ENABLED

Change-Id: I5b23564b7cb75d8ddeaaed38307d2bb2c19bab0a
1 file changed