Fix makefile error.

Change-Id: Iccbf9c6f5c2afa00f499886a5f01bf74329714de
diff --git a/Android.mk b/Android.mk
index 63ab1f3..192826c 100644
--- a/Android.mk
+++ b/Android.mk
@@ -6,7 +6,7 @@
 LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_MODULE_TAGS := optional
 LOCAL_STATIC_LIBRARIES := libxz_host libxdelta3_host
-LOCAL_C_INCLUDES += external/xdelta
+LOCAL_C_INCLUDES += external/xdelta3
 LOCAL_C_INCLUDES += external/lzma/xz-embedded
 include $(BUILD_HOST_EXECUTABLE)
 
@@ -17,6 +17,6 @@
 LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_MODULE_TAGS := optional
 LOCAL_STATIC_LIBRARIES := libxz libxdelta3
-LOCAL_C_INCLUDES += external/xdelta
+LOCAL_C_INCLUDES += external/xdelta3
 LOCAL_C_INCLUDES += external/lzma/xz-embedded
 include $(BUILD_EXECUTABLE)