Update git submodules

* Update docs/submodules/fds from branch 'master'
  - Merge "Added vim installation to post apex script"
  - Added vim installation to post apex script

    Change-Id: I96fb1d7f9f7fd58c89be53a1a34ba94a857b7e30
    Signed-off-by: juraj.linkes <jlinkes@cisco.com>

diff --git a/docs/submodules/fds b/docs/submodules/fds
index d1d2da5..b915eae 160000 (submodule)
--- a/docs/submodules/fds
+++ b/docs/submodules/fds
@@ -1 +1 @@
-Subproject commit d1d2da58d3a7eaa1b64e94ceb1e02c39d19886de
+Subproject commit b915eae3e2eefc9bc9b1674309575b18688c95ed