Updated git submodules

Project: so master 28e0969c182e67466bc1563e5d049a5107e3e87d

logging-slf4j:1.2.2-SNAPSHOT does not exist

Change the dependency to the 1.2.2 release version.
Remove the exclusion for EELF, because 1.2.2 doesn't use it.

Change-Id: I0ccca79df59282d5d9d71eec4b3faa845d31814f
Issue-ID: SO-1152
Signed-off-by: Rob Daugherty <rd472p@att.com>
(cherry picked from commit 50fcd6f94104234212d907f8fb968d506d4d6e33)

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 5a51b2e..28e0969 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 5a51b2e95eca747ae7f6bf98f38a36bab34b6c7b
+Subproject commit 28e0969c182e67466bc1563e5d049a5107e3e87d