Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "bug-fix: fix compass os_cert issue for bottlenecks euphrates"
  - bug-fix: fix compass os_cert issue for bottlenecks euphrates

    Change-Id: I74cae84ad2613ac25a1896ae5b57d38f08545818
    Signed-off-by: Gabriel Yu <Gabriel.yuyang@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index b7972b0..dfe4f90 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit b7972b02c75fd3a6b4d88ccfb3a1581c21868601
+Subproject commit dfe4f90bdcd765d3045ee1a9c6f00ea0b394e665