Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Updated from global requirements

    Change-Id: I9fa229d0216b90f7619d1fe5e9f5c35be8899d19
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index d41992f..6569c9c 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit d41992fe773fc88d8aa32723c93df8ba2e1c75b7
+Subproject commit 6569c9cc127dd6358a86f25f266b7bac8ef6f41f