Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Refactored neutron_utils#get_subnet_by_name() to get_subnet()"
  - Refactored neutron_utils#get_subnet_by_name() to get_subnet()

    Renamed utility function and added a subnet_settings parameter to
    hold a SubnetSettings object to help make the query more robust
    by being able to leverage values on the settings object.

    JIRA: SNAPS-165

    Change-Id: I226a1217dc4ba7bb50f7d985ecfaf3b7bc4f610b
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 48f714f..463dc2c 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 48f714f7dc56433148197b5fefb3d9253928a8b3
+Subproject commit 463dc2cd59bb26150f15e57a0e94fafbbf8634d4