Update git submodules

* Update docs/submodules/releng from branch 'master'
  to bddf218bd60dd610d6cf27bc9bed5a3a1e136dbf
  - Fix former switch case ;;

    Change-Id: Ib08018d3ed9094a461e3836814ce08ed2d5adb79
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 68073cb..bddf218 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 68073cbd21ebf04f7f899668c8af9a51caeadbe2
+Subproject commit bddf218bd60dd610d6cf27bc9bed5a3a1e136dbf