Update git submodules

* Update docs/submodules/integration.git from branch 'dublin'
  to 04523a01b23c67a1a759dc44f1e262d0672586ca
  - Adding document for vfw/edgex use case

    Adding the setup instructions for vFW/EdgeX usecases.
    Removed whitespaces.

    Issue-ID: MULTICLOUD-692
    Signed-off-by: Akhila Kishore <akhila.kishore@intel.com>
    Change-Id: I87a99ad2fce1a936334145ffe5cbf25e3133d93d
    (cherry picked from commit 24cda10dbd263b373c0e06593277aa43e43c4e5f)

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 2a9a2cf..04523a0 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 2a9a2cf20bf9da33b082ef025d2471304fcad10f
+Subproject commit 04523a01b23c67a1a759dc44f1e262d0672586ca