Update git submodules

* Update docs/submodules/optf/cmso.git from branch 'master'
  to 6b1c7dc5103660f508855f41af8bd5371f459579
  - Merge "Commit 3 for Integrate minizinc optimizer engine"
  - Commit 3 for Integrate minizinc optimizer engine

    Multiple commits required due to commit size limitation.

    Change-Id: I23e295064cec1bf4fcb091fca2e461462fb688ed
    Issue-ID: OPTFRA-436
    Signed-off-by: Jerry Flood <jflood@att.com>

diff --git a/docs/submodules/optf/cmso.git b/docs/submodules/optf/cmso.git
index c8c7ec4..6b1c7dc 160000 (submodule)
--- a/docs/submodules/optf/cmso.git
+++ b/docs/submodules/optf/cmso.git
@@ -1 +1 @@
-Subproject commit c8c7ec4aa51bca71fcf5ca84b49eef90697be876
+Subproject commit 6b1c7dc5103660f508855f41af8bd5371f459579