Updated cligen submodule

Signed-off-by: David Dudas <david.dudas03@e-uvt.ro>

diff --git a/cligen b/cligen
index f6ff7a8611d67a4ffa8ad17d40bbc6cef348cddb..67883b2490664e3ae0c9b21b919c38ac6ece6705 160000 (submodule)
--- a/cligen
+++ b/cligen
@@ -1 +1 @@
-Subproject commit f6ff7a8611d67a4ffa8ad17d40bbc6cef348cddb
+Subproject commit 67883b2490664e3ae0c9b21b919c38ac6ece6705