Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 448899ee55a6cf1c55b5510adceba8b3bab98297
  - Added input parameter loading handling from SDNC
    
    Change-Id: I9076d793468db659358c7ef0e7cc859886d7fe17
    Issue-ID: SO-1624
    Signed-off-by: waqas.ikram <waqas.ikram@est.tech>
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index e2a3995..448899e 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit e2a3995dd8dba9b9a18635ce37e4805dadcdb0fd
+Subproject commit 448899ee55a6cf1c55b5510adceba8b3bab98297