Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Refactoring of RouterSettings to extend RouterConfig

    RouterSettings and neutron_utils have a runtime cyclical
    dependency. This patch reduces this dependency and
    deprecates the RouterSettings class.

    JIRA: SNAPS-223

    Change-Id: I6a2a5e6e6e86204e62148a57e3525da5862841cf
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 133b321..3482f6e 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 133b321125eeb4c22b2963dbd112a074cfeb6ab1
+Subproject commit 3482f6e28e26025043f61efb90892d886f5909cc