Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 40593fe19cb687c0be239bac84c8662715e37c01
  - Merge "Removal of unused variables and replace type specification. Removal of unused local variables. Replace type specifications with diamond operator as per guide lines. Issue-ID: SO-1490"
  - Removal of unused variables and replace type specification.
    Removal of unused local variables. Replace type specifications with diamond operator as per guide lines.
    Issue-ID: SO-1490

    Change-Id: I728287427c0f6f9e8289fb0dfa8e906856c774ff
    Signed-off-by: h00397475 <hena.choudhury@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index cf71aaf..40593fe 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit cf71aaf1152f07aefd17cb022335a859ad49b657
+Subproject commit 40593fe19cb687c0be239bac84c8662715e37c01