Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 8b22646793d3f6cd2e8e0f5a90deae87140e17b3
  - Merge "mso vnf configuration update composite flow"
  - mso vnf configuration update composite flow

    Existing Change Management VNF Configuration Update flow migrated to
    the generic building blocks
    Introduced Activity BB VNFConfigModifyActivity.bpmn
    Updates to AppcOrcherationPreProcessor, ApplicationControllerTaskImpl
    to handle the ConfigModify Activity block.
    Updates to the catalog migration scripts to include VNF-Config-Update
    Macro flow.

    Issue-ID: SO-2768
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I06be7a83fb2738b91b0257e1ec84298a7dafc1a1

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 2567a70..8b22646 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 2567a7099e81e36f31d3b6d925251a81b2d922c7
+Subproject commit 8b22646793d3f6cd2e8e0f5a90deae87140e17b3