Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Record additional promotion metadata for further use"
  - xci: Record additional promotion metadata for further use

    It would be good to point to the link of the job that promoted
    certain scenario and display promotion date/time so we know when
    was the last time the scenario has successfully been promoted.

    Change-Id: I8099cf48f0ba5000cbf7622aa084f863f123eb15
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 80d776b..71e3c19 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 80d776b4c19bbc8ba48a5e15c7ee5d365cd238fe
+Subproject commit 71e3c19841704f65956e23407223bd3792664e48