Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[dovetail] remove the stream check for fuel"
  - [dovetail] remove the stream check for fuel

    Now it set that only running Dovetail jobs on Fuel fraser.
    Remove the check item.
    The mandatory test cases will run on all ha scenarios.
    The optional test cases only need to run twice a week on ha scenarios
    to save the time.

    Change-Id: I7f7dd93440bb40e7bc9964fd744bb002ef88f77b
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3c65a02..aef935b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3c65a0208227a27c8b71527a6e4dc5bf236d11ac
+Subproject commit aef935b21dbe400ba9fc814f9aded18155a216f0