Updated git submodules

Project: sdnc/northbound master d4d2912f5b8c7f12176ff3304ebbb8f30059f402

Fix GENERIC-RESOURCE-API yang model

Add missing enum values and container to yang model
Also, BRG and tunnelxconn's service instance parent
is VNF-API, not GENERIC-RESOURCE-API, so do not
try to retrieve service data.

Change-Id: I12c977a7e621ce654d0d5d38f8ac8f3ad95487bd
Issue-ID: SDNC-166
Signed-off-by: Dan Timoney <dtimoney@att.com>

diff --git a/docs/submodules/sdnc/northbound.git b/docs/submodules/sdnc/northbound.git
index ce59c2c..d4d2912 160000 (submodule)
--- a/docs/submodules/sdnc/northbound.git
+++ b/docs/submodules/sdnc/northbound.git
@@ -1 +1 @@
-Subproject commit ce59c2c4496879cb99a9ecf38075096282fbdc11
+Subproject commit d4d2912f5b8c7f12176ff3304ebbb8f30059f402