Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Merge "Updates quagga to newer version"
  - Updates quagga to newer version

    Change-Id: I635b171c15bca40788eefe909eaab3e9d4606db1
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index ed59809..58f6327 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit ed59809f6edc325700055c7fa2375d3245eb8ef9
+Subproject commit 58f6327a3d52e9e84827cd4720fc8cb16fe0627b