Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to cc07cc52864ab2950f850de021e5e04a72c3cfdb
  - Merge "Junit  added for KeystoneAuthHolder.java"
  - Junit  added for KeystoneAuthHolder.java
    
    Junit  added for KeystoneAuthHolder.java
    
    Issue-ID: SO-1576
    Change-Id: Ib313d6a3aa01da3fc7292b2cae4ba7b0a03ebce6
    Signed-off-by: Sudarshan Kumar <sudars19@in.ibm.com>
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 1a98e79..cc07cc5 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 1a98e7924e033db6ee15790f5ed5f2beb77e93fe
+Subproject commit cc07cc52864ab2950f850de021e5e04a72c3cfdb