Update git submodules

* Update docs/submodules/oom.git from branch 'casablanca'
  to 27804b7b710cde9f57209e0a32019112c621a037
  - Merge "Feature install odl-netconf-clustered-topology" into casablanca
  - Feature install odl-netconf-clustered-topology

    Install the odl-netconf-clustered-topology feature for clustered environments.

    Change-Id: Ic369fcbb962c9494dd6e165e38829cc55915689c
    Issue-ID: APPC-1242
    Signed-off-by: Aaron Hay <aaron.hay@att.com>

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 4b31147..27804b7 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 4b31147244a5ca652b76336c182a193423f79a06
+Subproject commit 27804b7b710cde9f57209e0a32019112c621a037