Update git submodules

* Update docs/submodules/apex from branch 'master'
  - Merge "RPM version update / ovs_dpdk rename"
  - RPM version update / ovs_dpdk rename

    - updating RPM version numbers for Euphrates
    - renaming ovs scenario to ovs_dpdk

    JIRA: APEX-434

    Change-Id: I75e1d96bd613ea04e2ffd12bd41b3a536ff75d7f
    Signed-off-by: Dan Radez <dradez@redhat.com>

diff --git a/docs/submodules/apex b/docs/submodules/apex
index fa29382..fd92fd7 160000 (submodule)
--- a/docs/submodules/apex
+++ b/docs/submodules/apex
@@ -1 +1 @@
-Subproject commit fa293822659e49a12403b58467f480eabb916a9d
+Subproject commit fd92fd7332bdd97564ecad0fb87c7e54603b94e2