Add metric id for anomaly fragments.

1. PowerUsageAnomalyDetails
2. AnomalyDialogFragment

Bug: 37681923
Test: Build

Change-Id: Ia82fde0fa3e61b6284dc18db3018dd223a0e435b
(cherry picked from commit 725562c7484439172dece19c72b5c76943144638)
2 files changed