Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Created domain class for ports.

    Create Port domain class so neutron_utils.py functions returning
    port objects will not be leaking out implementation details as each
    API version can change these data structures and this should all be
    handled by the SNAPS neutron utility.

    JIRA: SNAPS-118

    Change-Id: If031a094a9da284e2838691c3b3490359f710c61
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index f5f0f1c..e6326cd 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit f5f0f1cbcb757a9229a92c3a7f4ea400db11dd07
+Subproject commit e6326cd5e826d19e4dd2b096c17aff35da1757b3