Call utcp_timeout() once every iteration of the event loop.

[meshlink] / src / utcp

diff --git a/src/utcp b/src/utcp
index 5d4cf9d0eb85c7322298a2a0526132197e3bf633..52eeda5e47e8a081cd2f94b78536c6376592a526 160000 (submodule)
--- a/src/utcp
+++ b/src/utcp
@@ -1 +1 @@
-Subproject commit 5d4cf9d0eb85c7322298a2a0526132197e3bf633
+Subproject commit 52eeda5e47e8a081cd2f94b78536c6376592a526