Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 93aa9e4661899c42d599e08c6a1ae8dcfe9159a8
  - Merge "Removed MsoLogger in 'mso-adapters-rest-interface'"
  - Removed MsoLogger in 'mso-adapters-rest-interface'

    Removed MsoLogger from adapters ('mso-adapters-rest-interface')
    Replaced MsoLogger with plain slf4j.
    Refactored login output.
    Fixed imports.

    Change-Id: I2623c14dda55ae471bc11d40345c5f91c62bd94f
    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 edf1320..93aa9e4 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit edf132044317bc71a87a834a1b9dbe980d2e4639
+Subproject commit 93aa9e4661899c42d599e08c6a1ae8dcfe9159a8