Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 8a0c54a2e9c873771fd30e9e13749567916e2099
  - Merge "JUnit tests for MsoMulticloudUtils"
  - JUnit tests for MsoMulticloudUtils

    Increased junit tests coverage according to Sonar analyses.
    Added missing tests to deleteStack, queryStack, updateVdu and deleteVdu.

    Change-Id: I529725cfbe9be7cbdae9a197d39cd6a426ddb688
    Issue-ID: SO-1692
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index eaac181..8a0c54a 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit eaac1814e8341b556b43d54e43165c46c3facc08
+Subproject commit 8a0c54a2e9c873771fd30e9e13749567916e2099