IssueTracker

In the following commit:
https://cs.android.com/android/_/android/platform/frameworks/av/+/310037a32d56e361d5b5156b74f8846f92bc245e
AAudio got public API to query audio HAL's sample rate, format and channel count, namely:
https://developer.android.com/ndk/reference/group/audio#aaudiostream_gethardwarechannelcount
https://developer.android.com/ndk/reference/group/audio#aaudiostream_gethardwareformat
https://developer.android.com/ndk/reference/group/audio#aaudiostream_gethardwaresamplerate

AudioTrack.cpp was also extended to contain getters for these. However, there APIs were not added to Java AudioTrack class. Please provide these APIs as public java methods on android.media.AudioTrack class for feature parity.