Update git submodules

* Update docs/submodules/samplevnf from branch 'master'
  - Merge "Docs: Review and update the docs for E-release"
  - Docs: Review and update the docs for E-release

    JIRA: SAMPLEVNF-82

    Review and update the the E-release docsuments.

    Change-Id: I1eeb0dead18559b8f05039b81512d944a862bbb4
    Signed-off-by: Anand B Jyoti <anand.b.jyoti@intel.com>

diff --git a/docs/submodules/samplevnf b/docs/submodules/samplevnf
index 473537a..58c7eb1 160000 (submodule)
--- a/docs/submodules/samplevnf
+++ b/docs/submodules/samplevnf
@@ -1 +1 @@
-Subproject commit 473537a387353bd221ddf6ff5c22f10eb7c8cef8
+Subproject commit 58c7eb1100e51176c20e5d57250cb46ed7020fa3