Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Fixes issues with baremetal

    Change-Id: I60470611a70261d57ccbfd0e499f4336c7a12fe1
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 9d33c1c..34aad90 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 9d33c1cb043b10a16e245eac798cc1203b037789
+Subproject commit 34aad90040da4094a4288f6cbdf1acddb5f4628c