Update git submodules

* Update docs/submodules/releng from branch 'master'
  - jjb: xci: xci-start-new-vm.sh: Set pipefail option

    In commit I77d5d66c0146f943d805612ca5b47e2eed3ffc41 the 'ts' utility
    was added in order to print timestamps for deployment. However, this
    breaks the exit code since 'pipefail' was not set so every job was
    returning 'success'.

    Change-Id: I2625a655a7334b1e43b690618821e69377075ed1
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index b5f262a..087deeb 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit b5f262af5efb6a4f2b004c9b9133e70b57aa1793
+Subproject commit 087deeb855620075c686b195c7fb5ef20c55b928