Updated git submodules

Project: netconf master 28252d862d552dc78adc9df8b4657cd686502509

Merge "Use SimpleSchemaContext instead of EffectiveSchemaContext"

Use SimpleSchemaContext instead of EffectiveSchemaContext

EffectiveSchemaContext is an implementation detail of the parser,
SimpleSchemeContext is a beta-level API from yang-model-util.

Change-Id: I524f9e91562b5fa8d6d942f40bf957ec97e40e88
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/docs/submodules/netconf b/docs/submodules/netconf
index 17d4a56409775e872c9d55371e633472d621fe7d..28252d862d552dc78adc9df8b4657cd686502509 160000 (submodule)
--- a/docs/submodules/netconf
+++ b/docs/submodules/netconf
@@ -1 +1 @@
-Subproject commit 17d4a56409775e872c9d55371e633472d621fe7d
+Subproject commit 28252d862d552dc78adc9df8b4657cd686502509