audio: Changing usb device from ANALOG to USB_IN

- USB recording is not working as in L USB plugin
  events comes for AUDIO_DEVICE_IN_USB_DEVICE instead
  of DEVICE_IN_ANLG_DOCK_HEADSET.
- Fix is to convert device event for AUDIO_DEVICE_IN
  _USB_DEVICE to DEVICE_IN_ANLG_DOCK_HEADSET.

Change-Id: I384c5cf8097697f52f83faac21b032d877a9141d