Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[daisy] Fix the blocking rules of daisy daily jobs"
  - [daisy] Fix the blocking rules of daisy daily jobs

    Change-Id: I81eaed8b397b5d748c5fde5a07dadecde0ec08fa
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3a76d9e..e4d8bc6 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3a76d9e0aff0902c67cc6c22bed79f4a0a02211f
+Subproject commit e4d8bc6b5d8ebaf1a244d3617c94296c86f2258c