Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a8bfc8e0d15e5c7b96d36566314017ecbf836e43
  - Merge "Update SO to handle Async VNF operations to SDNC"
  - Update SO to handle Async VNF operations to SDNC

    Update SO to handle Async VNF operations to SDNC

    Issue-ID: SO-2141
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I20037306e9ce5b8df434511a46c0a3399e335c3d

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 09867d8..a8bfc8e 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 09867d8f6cfe922fc75d0b31f6376838e9f8f093
+Subproject commit a8bfc8e0d15e5c7b96d36566314017ecbf836e43