Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to bb271cc82880d15dc9396170ac6ed95de22958a3
  - Merge "Added ext_system_error_source column to requestdb"
  - Added ext_system_error_source column to requestdb

    Added ext_system_error_source column to requestdb

    Change-Id: Iad9ad0178546aad2b64014987ff3da60f01f8bd4
    Issue-ID: SO-2001
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index fabcae6..bb271cc 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit fabcae6be329ed3c2d9aa0bb763dfe6cbe66b62b
+Subproject commit bb271cc82880d15dc9396170ac6ed95de22958a3