PerformanceTracker: ensure that PerformanceTracker is obtained safely for each sensorId.

Concurrent acquisition of PerformanceTracker objects by multiple threads may result in the acquisition of empty objects.

Test: OEM monkey test
Flag: EXEMPT bugfix
Bug: 378600972
Change-Id: Ibbe906a2c3fe12bb3aac935b5b9918096e200f3c
2 files changed