Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e53c2cbebcaf9eababa6ead8723cf62194146e51
  - Merge "improve error log scores"
  - improve error log scores

    Updated error code name to fix spelling
    Defaulted errorcode and errordesc to unknown when not provided
    Remove unused imports from nc orchestrator application
    Added defaulting of serviceName to error log

    Issue-ID: SO-2538
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I5ae960f728739e2528173b66484562742429416c

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index f89d9e0..e53c2cb 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit f89d9e0887e41de727b4e829916ae60dd6926e0e
+Subproject commit e53c2cbebcaf9eababa6ead8723cf62194146e51