Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Set appropriate permissions for the key"
  - xci: Set appropriate permissions for the key

    Change-Id: I6387ca1f7eaf107f735eab82917d77b2f3a3d90a
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d8b99b7..e02c03e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d8b99b7bf61f4825596c66deb542dd3d0bd2605b
+Subproject commit e02c03e0446168ea490bf65f34a61245e3fd7f23