Updated git submodules

Project: sdnc/oam casablanca c5a26a4f748d1f03f1a23046e7d94b9027b4321d

Merge "removed vnf-id validation check in DG" into casablanca

removed vnf-id validation check in DG

1.vnf-information.vnf-id validation check should not be
  mandatory in validate-vnf-input DG, its removed.
2. added execute node to read
   generic-resource-api-dg.properties in
   esr-thirdparty-sdnc-discovery DG.

Change-Id: Iea920004cdd548e16b4223cf57008fc00dbb1cb2
Issue-ID: SDNC-523
Signed-off-by: shashikanth.vh <shashikanth.vh@huawei.com>

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 251c892..c5a26a4 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 251c892632b06d37ab0349227854f3bf55a055fe
+Subproject commit c5a26a4f748d1f03f1a23046e7d94b9027b4321d