Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 3a90a3eee631968834ef1de74f06be36b83e7a3c
  - Fix trivy and xtesting-pi views by hand

    Change-Id: Ic951a5a9681738097f7f457d3265f7c82a8faaf8
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 7704a75..3a90a3e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 7704a7556f9796f2a53990c101560c61046bdda7
+Subproject commit 3a90a3eee631968834ef1de74f06be36b83e7a3c