Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 8f2a4878715e46db24735bb63e14598c5c1e61f8
  - Merge "Fixed potential crashes due to null object dereference attempts in exception handlers"
  - Fixed potential crashes due to null object
    dereference attempts in exception handlers

    Issue-ID: SO-1841
    Signed-off-by: Oleksandr Moliavko <o.moliavko@samsung.com>
    Change-Id: I9882171b47b6442fa8ca12110d8ef23fc975347b

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 8892816..8f2a487 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 8892816fc723206eaf3ce96228f87838d9528e82
+Subproject commit 8f2a4878715e46db24735bb63e14598c5c1e61f8