Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 592b3316231fe69d1e812112936df307bcbf6af5
  - Fix arm tags

    Change-Id: I484fc22e0d60aa1d1e6195b44d76bef850430bf9
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 4177640..592b331 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 417764008356a13b0a4690875a13ce546a7f46e6
+Subproject commit 592b3316231fe69d1e812112936df307bcbf6af5