Merge "spatializer: disable head tracker sensor when not neeeded" into tm-dev...

Merge "spatializer: disable head tracker sensor when not neeeded" into tm-dev am: f68caf6e am: d9e2e83c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/17004682

Change-Id: I64d3836baceb54f31a778162822f8d7e8ea8f03d