Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a909811c78550eae05c30aa65e258b873e08b175
  - mso to validate the name uniqueness in A&AI

    Need to change query by name using nodes query to make sure names are
    globally unique.
    Added new Exception type for duplicate A&AI object names.
    Added tests for AAIVfModulResources.

    Change-Id: I71558d0881d7060819f5f807fe58779be6edfa6f
    Issue-ID: SO-2020
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index e29b04b..a909811 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit e29b04bca6367c14fdbd403bbd275e6c8c10fa60
+Subproject commit a909811c78550eae05c30aa65e258b873e08b175