Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Report Fuel Deployments to Testapi Dashboard"
  - Report Fuel Deployments to Testapi Dashboard

    Using these macros for deployment jobs will report the deployment
    results of Fuel to the testresults database[1].

    [1] http://testresults.opnfv.org/test/#/deployresults

    Change-Id: I353631f073578b4a2da0f08ffba4042931e65dca
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 6e5e395..b513580 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 6e5e3951e752ee16ac647776242a026428d1f8bc
+Subproject commit b5135804de0091e03ff9f4633cdc1c66d8ceb752