Audio: Add routing option between HDMI speakers and device speakers

Add option that routing  between HDMI audio output and device audio
output, when HDMI is connected.

Change-Id: I9bbe9b1cbee5b6659502dae386c086f37bef2120
audio: primary desc check for sonification

- Audio glitches on alarm expiry if alarm starts
  on screen lock/standby mode

- On alarm expiry alarm tone will start play on combo device
  &screen unlock tone try to play on headset which results
  multiple device switch, as a result audio glitches are audible

- Fix is to treat all non-music streams as sonification
  if sonfication strategy is used by primary desc which
  will avoid device switch

Change-Id: Ie280400d5f754a8d4bd8885b6836be5e120f8783
CRs-Fixed: 514467
Crs-Fixed: 626722
hal: start voip driver independent of voip output stream

- Voip driver requires voip output stream to be opened
to start itself. But it is possible that some applications
may use voip input and normal audio output. Code changes are
done to handle this scenario.
- It is possible that some applications may use different
sample rates for voip input and voip output streams. It is
handled now in such a way that, if the sample rate of the
secondly opening stream does not match with that of the
first one, the second stream will not be allowed to open
voice path for VoIP.

Change-Id: Id9d86181eeee2c4ea0aa49a723ca92c1961a559b
CRs-fixed: 601785
hal: HFP support for setting volume

-Add support for setting volume using setparameter.

Change-Id: Id614d719324ab6b280116fd952c3fa73844ce1b0
CRs-Fixed: 596437
hal: apply TTY mode change for all voice use cases

Update devices for Voice2, VoLTE and QCHAT sessions
based on the TTY mode. This change is needed to support
enabling/disabling and switching TTY mode during
voice call.

Change-Id: I4f1fde8ce6b20fad0d24e0cd963e2c3709ff25d5
CRs-fixed: 608183
hal: Add new CSD API to reduce in call device switch delay

New CSD api is added to reduce device switch delay during voice call.
This api is called before enabling the devices so that csd voice call
sequence on MDM can run in parallel with device enable configuration
on APQ.

Change-Id: I9239ff21e1c07370516d0ed668e1e94af12f9eb2
hal: Check hfp usecase to differenciate between nb and wb

 - Need to check if the hfp session is WB or not before
   setting the device to avoid rerouting.

CRs-Fixed: 605465
Change-Id: Ice6fd2776b89e5358004071b011ac304f35dbf58