Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 6c3592e595b9049760c4e014e0432c108e3818c3
  - Merge "Added back MDC.put to generated missing requestID"
  - Added back MDC.put to generated missing requestID

    Added back MDC.put to generated missing requestID in logfiles.

    Issue-ID: SO-2265
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I67e0b01dfeb609e7a5d7e29f976ec3ec6549e96b

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 6a53a56..6c3592e 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 6a53a568abadf59dac64fc832741259563c0b572
+Subproject commit 6c3592e595b9049760c4e014e0432c108e3818c3