Update git submodules

* Update docs/submodules/so/libs.git from branch 'master'
  to f31f8ce722efcb2465d290cc3755c258ef2857af
  - Merge "changed attributes order OpenStackRequest.java"
  - changed attributes order OpenStackRequest.java

    changed attributes order for OpenStackRequest class

    Issue-ID: SO-1490

    Change-Id: Ic741b33b9e749fe193f2a7c8d4b02c6f67319ac3
    Signed-off-by: Sindhuri.A <arcot.sindhuri@huawei.com>

diff --git a/docs/submodules/so/libs.git b/docs/submodules/so/libs.git
index 48d3624..f31f8ce 160000 (submodule)
--- a/docs/submodules/so/libs.git
+++ b/docs/submodules/so/libs.git
@@ -1 +1 @@
-Subproject commit 48d3624fdf93d88f299e8b116ec7ee9c254450d7
+Subproject commit f31f8ce722efcb2465d290cc3755c258ef2857af