Update git submodules

* Update docs/submodules/netvirt from branch 'master'
  to ccb24a3bab9946e2d5315cd3cd9a8c060150ed42
  - Avoid shadowing fields

    A couple of NeutronvpnUtils methods have parameters named dataBroker,
    which shadow the field by the same name. These parameters aren’t
    necessary any longer, this patch drops them.

    Change-Id: I234fe5a2607911121cb49d6d48006517227f9d45
    Signed-off-by: Stephen Kitt <skitt@redhat.com>

diff --git a/docs/submodules/netvirt b/docs/submodules/netvirt
index 79578a998deff580fe62cd7222c7d8af2bdb177f..ccb24a3bab9946e2d5315cd3cd9a8c060150ed42 160000 (submodule)
--- a/docs/submodules/netvirt
+++ b/docs/submodules/netvirt
@@ -1 +1 @@
-Subproject commit 79578a998deff580fe62cd7222c7d8af2bdb177f
+Subproject commit ccb24a3bab9946e2d5315cd3cd9a8c060150ed42