Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e709eab9ab55753eb17e435ee87f7f32d811bce2
  - Merge "Removed unused methods injectSNIROCallbacks() according to comments by maintainer"
  - Removed unused methods injectSNIROCallbacks()
    according to comments by maintainer

    Issue-ID: SO-1841
    Signed-off-by: Oleksandr Moliavko <o.moliavko@samsung.com>
    Change-Id: I22af32a50cc08954861232a8e38d23166a88c442

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 130be60..e709eab 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 130be60e9b0244174cefed4353d1fb59c46c95e2
+Subproject commit e709eab9ab55753eb17e435ee87f7f32d811bce2