Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Move daisy jobs of master branch to zte-pod3"
  - Move daisy jobs of master branch to zte-pod3

    Zte-pod2 is a little busy.

    Change-Id: I7628a1a966552c5caf1706a2ac8c47952a11c095
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 994a8c5..fa7c5d4 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 994a8c5d5c4bad0d5920851ca435bfef04dd2de4
+Subproject commit fa7c5d4f2024565623dc9d47e8dd900f0628443a