Update git submodules

* Update docs/submodules/samplevnf from branch 'master'
  - Merge "[UDP_Replay] fixing of compiler warning"
  - [UDP_Replay] fixing of compiler warning

    removes the nb_lcores as its no longer used.

    Change-Id: I13020585afb6d1e0758f1efc6578740dd3502d72
    Signed-off-by: Vishwesh M Rudramuni <vishwesh.m.rudramuni@intel.com>

diff --git a/docs/submodules/samplevnf b/docs/submodules/samplevnf
index 27c68de..cb94e00 160000 (submodule)
--- a/docs/submodules/samplevnf
+++ b/docs/submodules/samplevnf
@@ -1 +1 @@
-Subproject commit 27c68de1ca5795173e96e55c161c0c9572d32626
+Subproject commit cb94e0036256c6a3fb0aadb682a04d8ad30ddd2a