AudioTrack: Refine metrics error collection.

Ensure variables set before error collection
as they may happen early in set.

Test: atest AudioTrackTest
Test: adb shell dumpsys media.metrics
Bug: 199763036
Merged-In: Idc8ecbf8307d5bace098baf1a45735e786305576
Change-Id: Idc8ecbf8307d5bace098baf1a45735e786305576
2 files changed