Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 79d1e0244ce1f01f76640491dd6fca23420212cd
  - Merge "Fix PNF software upgrade workflow"
  - Fix PNF software upgrade workflow
    
    Fix the issue that API can not return when the workflow has ended.
    
    Issue-ID: SO-2751
    Signed-off-by: Enbo Wang <wangenbo@huawei.com>
    Change-Id: I7d140b2286ce3003a6efcd2c3891fc8142982477
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index f542006..79d1e02 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit f5420060c758308df18a0e316d6ae214ef9eb5c6
+Subproject commit 79d1e0244ce1f01f76640491dd6fca23420212cd