Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7321d01bda3524066d5a76276a4511554b7a4062
  - Merge "Removed MsoLogger from UUIDChecker"
  - Removed MsoLogger from UUIDChecker
    
    Cleaned UUIDChecker from MsoLogger.
    Fixed imports.
    
    Change-Id: Ieecea2fcd08025f950025f3bf8a679dee1626a25
    Issue-ID: LOG-631
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 58b68ba..7321d01 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 58b68bac19d6cd56209207d970bad721f802b94f
+Subproject commit 7321d01bda3524066d5a76276a4511554b7a4062