Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'elalto'
  to 4b19faedfa92b30c8d292d9a5f274c812764a99c
  - Fixes for async response to SO

    1) Wrong user name configured for SO interface
    2) Accept header needs to be set to 'text/plain'
    3) Content-Type needs to be explicitly set to 'application/json'
    4) Template is missing outer "input" tag
    5) Message needs to be in XML format, not JSON

    Change-Id: Icd06d12ff8576d2dd560ea452d0a14c3de643a00
    Issue-ID: SDNC-927
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index c289463..4b19fae 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit c289463d538ec66fc5febe41b10d87f1c3e26b89
+Subproject commit 4b19faedfa92b30c8d292d9a5f274c812764a99c