audio: add implementation for TV related API

1. TunerConfiguration.
2. AudioDescriptionMixLevel getter/setter.
3. DualMonoMode getter/setter.
4. PlaybackRate getter/setter.

Test: TIS player with instrumented HAL
Test: atest AudioTrackTest#testTunerConfiguration
Test: atest AudioTrackTest#testDualMonoMode
Test: atest AudioTrackTest#testAudioDescriptionMixLevel
Test: atest AudioManagerTest#testGetAdditionalOutputDeviceDelay
Bug: 173482792
Merged-In: Idb22ce6714fa240b2b4b3b8637b16d3a51228fa1
Change-Id: Idb22ce6714fa240b2b4b3b8637b16d3a51228fa1