Update git submodules

* Update docs/submodules/kvmfornfv from branch 'master'
  - Merge "cleanup: remove fuel plugin since fuel@opnfv uses mcp"
  - cleanup: remove fuel plugin since fuel@opnfv uses mcp

    Change-Id: I5e0687008c53ee03973da5a3b58880b9b7c7de1c
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>

diff --git a/docs/submodules/kvmfornfv b/docs/submodules/kvmfornfv
index 4525b15..2dd9dea 160000 (submodule)
--- a/docs/submodules/kvmfornfv
+++ b/docs/submodules/kvmfornfv
@@ -1 +1 @@
-Subproject commit 4525b15e86b4c7e2d426988c4ec1a11132a9f51b
+Subproject commit 2dd9dea0edaf1157e4cb914240821d22fe1ca5b0