Hal: Initial commit for B-family targets

- Remove broadside dual-mic config specific
  code which is not supported anymore.
- change output device for voice calls.
  Voice calls should enable side tone,use voice
  handset device which enables side tone during
  voice calls.
- Add Fluence quad MIC support for voice calls
  in speaker mode.
- Correct the audio hal library name to reflect
  the target name.
- Compile the msm8974 platform code for all
  b-family targets.
- Fix the low latency number accordingly for
  msm8610 in platform code

Change-Id: I8f16ac8eef8ef4bec1295bf73208ebaf90303603
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index 5702f37..ecb6245 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -26,6 +26,7 @@
 
 /* Flags used to initialize acdb_settings variable that goes to ACDB library */
 #define DMIC_FLAG       0x00000002
+#define QMIC_FLAG       0x00000004
 #define TTY_MODE_OFF    0x00000010
 #define TTY_MODE_FULL   0x00000020
 #define TTY_MODE_VCO    0x00000040