Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to df5f83eef26b23a5381e134ff50f89b340376596
  - Merge "convert openstack to external tasks"
  - convert openstack to external tasks

    Use external tasks to communicate with openstack adapter
    Will be more resilient to failures
    Refactored all flows to use external tasks not REST calls
    Rollback is now an external task
    Ensured backwards compatibility

    Issue-ID: SO-2767
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I8afdb89c688d756aed0f25f7d9a7fb898142554d

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 8d23a63..df5f83e 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 8d23a63762dcd0d435463fa25c64f146d52dc981
+Subproject commit df5f83eef26b23a5381e134ff50f89b340376596