Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 781ae827294edc8e9a25d1ac83d7399be8186e8b
  - Merge "Major Sonar fixes in E2EServiceInstances"
  - Major Sonar fixes in E2EServiceInstances

    Major code fixes in E2EServiceInstances according to the Sonar analysis.
    -Removed unnecessary code.
    -Removed unnecessary method parameters.
    -Removed unused variables.

    Issue-ID: SO-2099
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    Change-Id: I0e217174455a6748c663b3d5cc92fdc22b67ce2d

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 44caab6..781ae82 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 44caab6e00aabad304b8e3b35d88af402be918dd
+Subproject commit 781ae827294edc8e9a25d1ac83d7399be8186e8b