hal: Add support for LINE out device

- Add support for AUDIO_DEVICE_OUT_LINE device.
  Treat it same as Wired Headphone device w.r.t.
  routing and acdb device.
  If the acdb or backend is different it can be
  updated using audio_platform_info.xml.

- Increase deep buffer period size to 40ms and
  with peroid count as 2

Change-Id: Ic0821a4f22f99d44e98c2bd48179edcaa2c9247e