Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 4ad529ac7301498f1ec153936cf14e8446288314
  - Merge "Add SpringClientFilter in ValetClient to autolog"
  - Add SpringClientFilter in ValetClient to autolog

    Add SpringClientFilter in ValetClient to autolog msgs
    Modify to use our RestTemplateConfig for RestTemplate
    Use Provider for thread-safe RestTemplate autowire

    Issue-ID: SO-2160
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I02d1995ebd6d2c93477008feb13193d3c0b3cd05

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 21efdd9..4ad529a 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 21efdd9394ac85637eb9e3531e0b78d7f1f09d41
+Subproject commit 4ad529ac7301498f1ec153936cf14e8446288314