Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[Dovetail] Increase frequency of Dovetail runs on Compass"
  - [Dovetail] Increase frequency of Dovetail runs on Compass

    Run Dovetail tests on every deployment of os-nosdn-nofeature and
    os-odl_l3-nofeature-ha to improve testing turn-around time as we are
    approaching the next release of Dovetail.

    Change-Id: Idb5580871c47651eb1c01e917d9d93be73b9cd17
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 8da5c2e..79143fb 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 8da5c2e0cd87d2dd525d57a7f1a1e1fde68b5b24
+Subproject commit 79143fb6f35fd2adcfef333f9acd0070b9db2c74