Updated git submodules

Project: netconf master 77178144c3b4c72230a5769e32f10a2976c23e89

Merge "Migrate XML output to yang-data-codec-xml"

Migrate XML output to yang-data-codec-xml

The codecs provided yang-data-impl are superseded by those in
codec-xml. This patch provides the first part of migration.

Change-Id: If777defcc6218faf5597289956b800d68dcb5e5a
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/docs/submodules/netconf b/docs/submodules/netconf
index 427cce381055d13b8bd44307608bbb6f701cf059..77178144c3b4c72230a5769e32f10a2976c23e89 160000 (submodule)
--- a/docs/submodules/netconf
+++ b/docs/submodules/netconf
@@ -1 +1 @@
-Subproject commit 427cce381055d13b8bd44307608bbb6f701cf059
+Subproject commit 77178144c3b4c72230a5769e32f10a2976c23e89