Merge "Bluetooth Metrics: Add metric_id field for Bluetooth metrics to proto. The incremental id is neither a device id nor a pseudo name and therefore PII free." into rvc-dev am: 0941d63aee am: 458070932b am: 2c5ed16ab4

Change-Id: Idc188b735420c1ac35824a00fbe7e1cbc0e2fd1f