:art: add SX1509 constants

diff --git a/plug b/plug
index a6f5c3f6eddc878ef259f95f9c0514a07d037b19..f02de025aa84430a74ed80293b0a259abe7fec2b 160000 (submodule)
--- a/plug
+++ b/plug
@@ -1 +1 @@
-Subproject commit a6f5c3f6eddc878ef259f95f9c0514a07d037b19
+Subproject commit f02de025aa84430a74ed80293b0a259abe7fec2b