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: I54a2880f5b9dbc39746b20485f0aea9d9c3a39d7
CRs-Fixed: 514467
Crs-Fixed: 626722