Support selecting input devices

InputRouteManager calls AudioManager.setPreferredDeviceForCapturePreset
to select preferred input device.
InputRouteManager adds OnPreferredDevicesForCapturePresetChangedListener
to listen to preferred input device changes and then updates UI.

Change-Id: I8eefceb62699aca547dec438c00d2aada41cedc2
Bug: b/355684672, b/357123258
Test atest MediaSwitchingControllerTest,InputRouteManagerTest
Flag: com.android.media.flags.enable_audio_input_device_routing_and_volume_control