Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 6a53a568abadf59dac64fc832741259563c0b572
  - Merge "- Make association from the cvnfc to the fabric"
  - - Make association from the cvnfc to the fabric

    - Make association from the cvnfc to the fabric config.

    Issue-ID: SO-2262
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I8d9c1e5b738ec36fb3c6d9bae4acfef155b0e058

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index d2e4461..6a53a56 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit d2e4461afce4673244388f36977f02d0b4414b1f
+Subproject commit 6a53a568abadf59dac64fc832741259563c0b572