Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "support cancel operation while signing in"
  - support cancel operation while signing in

    support the cancel operation in the
    https://openstackid.org/accounts/user/consent

    Change-Id: I06a1f130a3115774f2e88fc25dad522a7cf53e36
    Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3d39c8e..dd16605 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3d39c8ea99b850b728f2b7753e139943bdcc0807
+Subproject commit dd166055f0d8789a94b0ef237150f41acc789e62