Update git submodules

* Update docs/submodules/nfvbench from branch 'stable/euphrates'
  - Move docker container to 1.0.10

    Change-Id: Ie7b86f76f2762ac450c1f80a401dfc7290b0ae60
    Signed-off-by: ahothan <ahothan@cisco.com>

diff --git a/docs/submodules/nfvbench b/docs/submodules/nfvbench
index f13f52f..be1e123 160000 (submodule)
--- a/docs/submodules/nfvbench
+++ b/docs/submodules/nfvbench
@@ -1 +1 @@
-Subproject commit f13f52f0a438f40840775d7e0af0e71f2137dc3c
+Subproject commit be1e12371b0982348774e59f2dcdf876ca5ec22e