Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 92555a71ca2c208d33cbbb043c755f0175c6decc
  - Merge "Adding support for multi-layer and multi-domain topology discovery for CCVPN"
  - Adding support for multi-layer and multi-domain topology discovery for CCVPN

    Issue-ID: SDNC-899
    Change-Id: I20f9d82e2488be3f90ef2566511787c69b6f7ed0
    Signed-off-by: Hesam Rahimi <hesam.rahimi@huawei.com>

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 0358551..92555a7 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 035855121e4b6eed9012809e841b6345a1a11cc3
+Subproject commit 92555a71ca2c208d33cbbb043c755f0175c6decc