Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 14a0406521ec15e259729dcd27e9aaac14517e66
  - Merge "compliant attribute name, removed unused import"
  - compliant attribute name, removed unused import

    compliant attribute name (to match regex), removed unused imports

    Issue-ID: SO-1490

    Change-Id: Icf49505568b938dadf7ab8fbc22f48238d69d2a8
    Signed-off-by: Sindhuri.A <arcot.sindhuri@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 637bcea..14a0406 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 637bcea2036c6eb27aeb0fd9cb888e25b5d57817
+Subproject commit 14a0406521ec15e259729dcd27e9aaac14517e66