Sync the NETCONF stack

There's been a bunch of fixes earlier today which look like something
that might affect usability of the Netopeer2 server. No reason not to
update to the very latest given that we're updating anyway.

Change-Id: I5db35a209718afd656f7f6eae3fb4d3e05eb4d19
Depends-on: https://gerrit.cesnet.cz/c/CzechLight/dependencies/+/6256
diff --git a/submodules/dependencies b/submodules/dependencies
index c1eeaa3..4ddd783 160000
--- a/submodules/dependencies
+++ b/submodules/dependencies
@@ -1 +1 @@
-Subproject commit c1eeaa3ab7b2da218eb902d0294b5b5a2066955e
+Subproject commit 4ddd783978fc134ed9f5925fb5ac89f9e37ee165