audio: hal: add customized external smart pa code

add customized external smart pa control code

Change-Id: I667648a98f887bc488827fada6a00f9f987ff513
diff --git a/hal/Android.mk b/hal/Android.mk
index 362e218..f5a894b 100644
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -93,6 +93,12 @@
 	$(LOCAL_PATH)/voice_extn \
 	external/expat/lib
 
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_SMART_PA_TFA_98XX)),true)
+    LOCAL_SHARED_LIBRARIES += libexTfa98xx
+    LOCAL_CFLAGS += -DSMART_PA_TFA_98XX_SUPPORTED
+    LOCAL_SRC_FILES += audio_extn/tfa_98xx.c
+endif
+
 ifeq ($(strip $(AUDIO_FEATURE_ENABLED_MULTI_VOICE_SESSIONS)),true)
     LOCAL_CFLAGS += -DMULTI_VOICE_SESSION_ENABLED
     LOCAL_SRC_FILES += voice_extn/voice_extn.c