Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a2fd007e4d1b03f7258d71fa86658510ff2f1790
  - update logging to match onap logging library

    Updated to use changes added to logging library in ONAP
    Updated RestClient to set mdc rather than extend filter
    Updated filter removal to include new spring filter
    Updated to exclude filter causing failure in catdb
    Excluded filter causing failures in requestdb
    Updated requestdbatt to exclude filter
    Updated check for spring filters to fix failing tests

    Issue-ID: SO-2353
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: Idb081a0f5527690f9dc41c7914a2d721f9022aea

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index a1f8a0c..a2fd007 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit a1f8a0c1ce64e90653397c5ce8d4949fe0244d07
+Subproject commit a2fd007e4d1b03f7258d71fa86658510ff2f1790