Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to a9b8635c9fe4aa71f6ed3d79827790e5b9932137
  - Remove unused heat template parameters
    
    Change-Id: Ia2f66fd3b6eb3833ba20f0b060348220a4a0c961
    Issue-ID: INT-993
    Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
    
diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index c76dadc..a9b8635 160000
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit c76dadc92ea1a0f736e5a0f3f7090ec65589764c
+Subproject commit a9b8635c9fe4aa71f6ed3d79827790e5b9932137