Update lib submodule

diff --git a/rpp-lib b/rpp-lib
index 573021795371f41a23ed0fe0b5171f38bb96d86e..b0402226674d0c3b2b21aff34268e39a5f10c329 160000 (submodule)
--- a/rpp-lib
+++ b/rpp-lib
@@ -1 +1 @@
-Subproject commit 573021795371f41a23ed0fe0b5171f38bb96d86e
+Subproject commit b0402226674d0c3b2b21aff34268e39a5f10c329