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: I47b022154983283aeeac41cf506818009e88995b
Change-Id: I47b022154983283aeeac41cf506818009e88995b