audio/Android.mk: update for android n preview

use LOCAL_MODULE_RELATIVE_PATH to replace LOCAL_MODULE_PATH

Change-Id: I8b5f7a41661b63a883a38cee244155a1f5179fad
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
diff --git a/audio/Android.mk b/audio/Android.mk
index a55fe72..29b9c39 100644
--- a/audio/Android.mk
+++ b/audio/Android.mk
@@ -1,3 +1,4 @@
+ifeq ($(strip $(TARGET_PRODUCT)),vexpress)
 # ifeq  ($(strip $(BOARD_USES_TINY_AUDIO_HW)),true)
 
 LOCAL_PATH := $(call my-dir)
@@ -6,7 +7,7 @@
 
 # Should change this so the enable variable gets used as the name?
 LOCAL_MODULE := audio.primary.vexpress
-LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_MODULE_RELATIVE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
 LOCAL_SRC_FILES := audio_hw.c
 LOCAL_C_INCLUDES += \
 	external/tinyalsa/include \
@@ -20,3 +21,4 @@
 include $(BUILD_SHARED_LIBRARY)
 
 # endif
+endif