Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Doctor job bugfix: fix the scenario"
  - Doctor job bugfix: fix the scenario

    Use these scenario which can trigger doctor jobs running in functest

    Change-Id: I66df099c3923b9c47aab9f9f8685052bd33331f7
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index baabd8f..bca0fa4 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit baabd8fc2aecabcac6903f515a032054a1528bda
+Subproject commit bca0fa495ac4e1591bd062f61dbb88dad3c69a94