Update interface.

diff --git a/interface b/interface
index 6d4d9aa8af7fb462f93093f20d110e967506c24a..c2d48265ca8246b9bad1af6045f9ebfabbb00d20 160000 (submodule)
--- a/interface
+++ b/interface
@@ -1 +1 @@
-Subproject commit 6d4d9aa8af7fb462f93093f20d110e967506c24a
+Subproject commit c2d48265ca8246b9bad1af6045f9ebfabbb00d20