Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Remove test_create_volume_bad_zone

    JIRA: FUEL-356

    Fuel/MCP has set allow_availability_zone_fallback option to True.
    If the requested Cinder availability zone is unavailable, fall back
    to the value of default_availability_zone, then storage_availability_zone,
    instead of failing.

    Change-Id: I04f45f8435dbdf1113ac6b2c50bf913c1f29cd20
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index cbd9af4..65aca3d 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit cbd9af45e80c9e1922cb2046bd9b5737d4d51abb
+Subproject commit 65aca3d6919a3d31fa360afa01baee5ebff1fe22