hal: update audio feature flags

- update audio feature flags to use
  AUDIO_FEATURE_ENABLED_XXX instead of
  AUDIO_FEATURE_DISABLED_XXX.
- These feature flags are defined
  by target board config file

Change-Id: Iba482d8b72bfa2675877d833d7abcb93d4cf4907
diff --git a/policy_hal/Android.mk b/policy_hal/Android.mk
index 480df92..4e9ed01 100644
--- a/policy_hal/Android.mk
+++ b/policy_hal/Android.mk
@@ -1,4 +1,4 @@
-ifneq ($(strip $(BOARD_USES_AOSP_AUDIO_POLICY_MANAGER)),true)
+ifeq ($(strip $(BOARD_USES_EXTN_AUDIO_POLICY_MANAGER)),true)
 
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
@@ -20,16 +20,16 @@
 LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
 LOCAL_MODULE_TAGS := optional
 
-ifneq ($(strip $(AUDIO_FEATURE_DISABLED_FM)),true)
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_FM)),true)
 LOCAL_CFLAGS += -DAUDIO_EXTN_FM_ENABLED
 endif
-ifneq ($(strip $(AUDIO_FEATURE_DISABLED_PROXY_DEVICE)),true)
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_PROXY_DEVICE)),true)
 LOCAL_CFLAGS += -DAUDIO_EXTN_AFE_PROXY_ENABLED
 endif
-ifneq ($(strip $(AUDIO_FEATURE_DISABLED_INCALL_MUSIC)),true)
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_INCALL_MUSIC)),true)
 LOCAL_CFLAGS += -DAUDIO_EXTN_INCALL_MUSIC_ENABLED
 endif
-ifneq ($(strip $(AUDIO_FEATURE_DISABLED_HDMI_SPK)),true)
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_HDMI_SPK)),true)
 LOCAL_CFLAGS += -DAUDIO_EXTN_HDMI_SPK_ENABLED
 endif