Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 02c068ce771ee4522936f2d15f41c2b631e965a8
  - Merge "Add so-simulator project"
  - Add so-simulator project
    
    contribute simulator to onap project
    
    Issue-ID: SO-2463
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I0a3a71fdeb47cbbd686830045a8bc40769102a29
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 6acf5b8..02c068c 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 6acf5b81168724ca4c889daf9b9cfcc5100e02e1
+Subproject commit 02c068ce771ee4522936f2d15f41c2b631e965a8