Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'elalto'
  to 8cd67b5568664fabec6f2225fc71e7480af53c8a
  - Merge "Add logic to use sync vs async SO response" into elalto
  - Add logic to use sync vs async SO response

    Add logic to send sync response to SO for vCPE but async for vFW

    Change-Id: I76e15c6a710459124d74f98804b8b7c035be12a6
    Issue-ID: SDNC-939
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 1a52324..8cd67b5 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 1a523242befde55ae9e748037da7c911743b53e4
+Subproject commit 8cd67b5568664fabec6f2225fc71e7480af53c8a