Tweak for forward compatibility

Change-Id: I6be78b607789c469f4ffad849a493d78e2539450
diff --git a/include/input/KeycodeLabels.h b/include/input/KeycodeLabels.h
new file mode 100644
index 0000000..1e91ea8
--- /dev/null
+++ b/include/input/KeycodeLabels.h
@@ -0,0 +1,6 @@
+#ifndef _LIBINPUT_KEYCODE_LABELS_H
+#define _LIBINPUT_KEYCODE_LABELS_H
+
+#include <androidfw/KeycodeLabels.h>
+
+#endif // _LIBINPUT_KEYCODE_LABELS_H