hal: handle combo output devices for voice call

- Issues: camera shutter sound is not heard on
  speaker when wired headset is connected.
- Rootcause: combo output devices are not updated
  properly for voice call use cases.
- Fix: update combo devices before voice call use
  cases in platform_get_output_snd_device.

CRs-Fixed: 591822
Change-Id: Ic2e75a4ce25f77499c07b4a8a32af774cdea16c2