Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Fixes bridge checking on jumphost for bm

    Change-Id: I5e90dd84383c7348d2cbe58a18370ca10d915598
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 583ae93..2af337a 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 583ae93f658e84a349638aeb33209aaae6cad63f
+Subproject commit 2af337a7d3a26a034a94f3698b1b1b3512d2c135