Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Removes build.sh

    We now have build.py which handles all the building and build.sh was
    just a wrapper to include ansible playbook.  Now that we have built in
    apex libs to run ansible there is no reason to keep build.sh anymore.

    Also simplifies the logic to determine apex root by using the git
    properties.

    Change-Id: I00d2e5c7c198e549d21936bb1e9b562ba93d3010
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index 1337704..2701832 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit 13377044e0cafd1e27ff66da2b264d8fa19e09af
+Subproject commit 27018324387d4ef0efa908b315403a636f92de55