Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to a76adb4357259ce40360bbc349297d97e9174d29
  - Updating vfw_edgeX documentation.

    Changes to the document has been made on wiki. Relecting those
    here to have a uniform documentation available to all.

    Issue-ID: MULTICLOUD-709
    Signed-off-by: Akhila Kishore <akhila.kishore@intel.com>
    Change-Id: I103bf97a54ca42f83baf05d3cf4db2189ab0b5b3

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 2b2b799..a76adb4 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 2b2b7990ed1f14664cc745078f9540345a16e7c5
+Subproject commit a76adb4357259ce40360bbc349297d97e9174d29