Updated git submodules

Project: so master 2153f867baa6966a04493fa1e11fcf9a0c260035

improved request-db test coverage

Change-Id: I790517aaa524189c09fcc59d23dd301758f0145c
Issue-ID: SO-544
Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 28975e0..2153f86 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 28975e0498b6b66b71e3d5a888e78858a34de0ac
+Subproject commit 2153f867baa6966a04493fa1e11fcf9a0c260035