Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a7a8bf35644032aba9cd98239edb1b79adeb0a40
  - Merge "Invoke prepare instance resource list from bpmn"
  - Invoke prepare instance resource list from bpmn

    Invoke prepare instance resource list from bpmn.

    Change-Id: I9a116eaee3800bfc061f986e0e5aea75d2f88598
    Issue-ID: SO-1393
    Signed-off-by: subhash kumar singh <subhash.kumar.singh@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 75ba5d2..a7a8bf3 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 75ba5d258a64da22adb6b070199d4920118614ee
+Subproject commit a7a8bf35644032aba9cd98239edb1b79adeb0a40