Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7d3f616c778005a59d3ab8d643025f918c640bf6
  - Merge "Include service-instance-id and"
  - Include service-instance-id and

    Include service-instance-id and service-model-version-id in the
    exception message if service-instance or service model is not found.

    Issue-ID: SO-2565
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: Ia088d241374af4422cb76d16e86ddd7ecc45593a

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 2f11ca9..7d3f616 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 2f11ca9c0644ae69b469d180e2552eb769bffb08
+Subproject commit 7d3f616c778005a59d3ab8d643025f918c640bf6