Define max number of channels for msm8974

Bug 24758771

Change-Id: I2c421617906d956fa37c10950ed3884c99eddb1b
diff --git a/hal/Android.mk b/hal/Android.mk
index 45b2cd9..48d4349 100644
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -10,6 +10,9 @@
 ifneq ($(filter msm8974 msm8226 msm8084 msm8992 msm8994,$(TARGET_BOARD_PLATFORM)),)
   # B-family platform uses msm8974 code base
   AUDIO_PLATFORM = msm8974
+ifneq ($(filter msm8974,$(TARGET_BOARD_PLATFORM)),)
+  LOCAL_CFLAGS += -DMAX_TARGET_SPECIFIC_CHANNEL_CNT="2"
+endif
 ifneq ($(filter msm8226,$(TARGET_BOARD_PLATFORM)),)
   LOCAL_CFLAGS := -DPLATFORM_MSM8x26
   LOCAL_CFLAGS += -DMAX_TARGET_SPECIFIC_CHANNEL_CNT="2"