Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to cfddfad6cdbe087a0b75c5df73cf059dbe2d700f
  - self-serve DG bugfix
    
    fix cds ra response to yang model mapping
    
    Issue-ID: SDNC-1140
    Signed-off-by: Cheung, Pat (kc1472) <kc1472@att.com>
    Change-Id: I54cdb6fec0bd448b99344868e894bf65dc2f26fc
    
diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index dde982c..cfddfad 160000
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit dde982c3aaef26b518080d27dba4925e33409056
+Subproject commit cfddfad6cdbe087a0b75c5df73cf059dbe2d700f