Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Added custom security group with ICMP and SSH rules."
  - Added custom security group with ICMP and SSH rules.

    This was done for all tests exercising floating IPs.
    Also added check to all of these tests to ensure the VMs
    all have received their private IP address via DHCP.

    JIRA: FUNCTEST-834

    Change-Id: I88ae2fecc3f8e507641adf24cb65a0583f4db24c
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 48da17b..c821212 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 48da17bfedb683b624faf08d2e0b7552d56cff21
+Subproject commit c8212122569c2dbf6290b43a0fbde0171c2ffdc5