Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a66d9c2da47ab5ca66f275fa66c8cec4fc0f7215
  - Merge "implement automatic migration for process"
  - implement automatic migration for process

    Initial setup of AutoProcessInstanceMigrationService
    Setup migration plan for auto migration
    Started adding unit tests for auto migration
    Setup processDefinitions as configurable list
    Moved autoMigrationEnabled and added default for keys

    Issue-ID: SO-2968
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: Ic3e4aed611e2a90a2083ffd5cd4f1a0e1b43d145

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 21f7077..a66d9c2 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 21f70778390a1aa248acb97c1c9576419b642dc2
+Subproject commit a66d9c2da47ab5ca66f275fa66c8cec4fc0f7215