Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Specify segmentation_id when creating network

    When the network_type is vlan, it is necessary to specify
    physical_network and segmentation_id.

    JIRA: FUNCTEST-863

    Change-Id: I44f57cdd825ee3cde7adb946c4f8dc78e3ee5212
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index acc4428..e7b96a8 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit acc4428e76422ad5c60f5433f325258214e6bc3b
+Subproject commit e7b96a812bb7b30416b4adb24ef0f22666687c10