Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Merge "Add VBMC double check"
  - Add VBMC double check

    Sometimes the VBMC devices don't all start and stay started
    This checks that they are all running before starting a deployment

    Change-Id: I3c69d31549798a5837475d10b8a365bb0e5c9a3d
    Signed-off-by: Dan Radez <dradez@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 5bfa41f..0ea79cc 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 5bfa41f042beab7575c94979ac881ce9e721be03
+Subproject commit 0ea79ccda01ea235ea3171273e8ee02dfc4ab2a9