Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Fix incorrect comment that security report posted"
  - Fix incorrect comment that security report posted

    A string is added to the build that a security report is being
    reported to Gerrit, even when it is not. This moves the string to just
    before the line when the comment is posted so we aren't lying to
    developers.

    Change-Id: I73840d025e8be86b6ac02772b22b22c4abd29422
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>