Update git submodules

* Update docs/submodules/releng from branch 'master'
  - barometer: bugfix missing script

    Update job to check for missing RPMs and block the artifact upload if there is
    an issue.

    Change-Id: I8230e82e7bc7c92bd5e87a8c15867ad311089790
    Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 5dbffe2..3700696 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 5dbffe22b2ec9fc062f2532529de246cbac9c253
+Subproject commit 3700696bfc796d9c560c4605759dda1df9f44b30