Update git submodules

* Update docs/submodules/releng from branch 'master'
  to e1a1dabb2053ccd3ed0908bd5b01109350b20cd0
  - Merge "Rename xtestingci to xtesting-ci"
  - Rename xtestingci to xtesting-ci

    Change-Id: I052d6d9024fe50a81f79af57a60685c170a0df54
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 0f9d5f0..e1a1dab 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 0f9d5f0e79944a8338167c7952a6d6f8d7eb760b
+Subproject commit e1a1dabb2053ccd3ed0908bd5b01109350b20cd0