Policy_HAL: avoid setting direct VoIP flag multiple

Block setting direct VoIP flag to normal playback output.
Fallback to primary output if a VoIP output is already
opened and if there is a request for other.

CRs-Fixed: 2145224
Change-Id: I33c553f1e8e3fcb15a9810a0bd9c35780ce7fa34
1 file changed
tree: 366705f6f76872d9b9ac1aee0972d2e33457ec19
  1. policy_hal/
  2. Android.mk