Update git submodules

* Update docs/submodules/releng from branch 'master'
  - KVMFORNFV: Disable jobs on Euphrates

    This patch is used to diasable jobs on Euphrates branch as there is only
    one node assigned for the daily job. If the jobs on master and Euphrates
    are enabled, the verify job is delayed.So inorder to avoid the delay for
    the verify job, disabling the jobs on Euphrates.

    Change-Id: Ib0eff4a1156858a73e4b889a61ac0cbd4ebe5ef0
    Signed-off-by: Navya Bathula<navyax.bathula@intel.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index e086052..f9c87c7 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit e086052c0550e65c5049b89f75d85eed65ed9e5f
+Subproject commit f9c87c7faf1660ee3a3fa94dc5d0d926696d8928