Health based action: Enable first native flag

To set the flag, run the following command in a root shell:
```
$> adb shell setprop persist.device_config.aconfig_flags.bluetooth.com.\
android.bluetooth.flags.leaudio_enable_health_based_actions true
```

Bug: 301448525
Bug: 290845728
Test: atest bluetooth_le_audio_client_test | For specific test
Test: mmm packages/modules/Bluetooth | To check all target
Change-Id: Icaeb829455f3f9f148ab5e7d3aeed16d37a0e7b6