Fix the issue to log the failed call audio route

The metrics log is not triggered properly on the failed audio route.
The change is to trigger the log on PENDING_ROUTE_FAILED.

Flag: com.android.server.telecom.flags.telecom_metrics_support
Bug: 368665511
Test: manual
Test: atest TelecomUnitTests:CallAudioRouteControllerTest
Change-Id: If8dd1ad3ee5bc7318587f4c0b01aec5d7d60ffff
4 files changed