Move libmemtrack headers into libmemtrack.

Change-Id: I6f695b4a965e924331d1a07fc45e9d8b6bc43d92
diff --git a/libmemtrack/Android.mk b/libmemtrack/Android.mk
index 7b170f5..ffc7244 100644
--- a/libmemtrack/Android.mk
+++ b/libmemtrack/Android.mk
@@ -5,6 +5,8 @@
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := memtrack.c
 LOCAL_MODULE := libmemtrack
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
 LOCAL_C_INCLUDES += hardware/libhardware/include
 LOCAL_SHARED_LIBRARIES := libhardware liblog
 LOCAL_CFLAGS := -Wall -Werror