Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e772b85547d47e27df284a8303efdefe8aaf26f0
  - Merge "Cleaning up unused variables and redundant initializers to remove static analyzer warnings"
  - Cleaning up unused variables and redundant initializers to
    remove static analyzer warnings

    Issue-ID: SO-1841
    Signed-off-by: Oleksandr Moliavko <o.moliavko@samsung.com>
    Change-Id: I5dee12e1935c152865963359d0fc869673393aad

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 5f898d3..e772b85 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 5f898d39ba86fe34f01cfb0342ab68c967ad77e4
+Subproject commit e772b85547d47e27df284a8303efdefe8aaf26f0