Updated git submodules

Project: integration/test master 1664e7597bb2ce5ca11ff64f6e643cb62f507a2c

IPv6: don't check access to metadata for IPv6 VM

If VM has only IPv6 address, don't check its access to neutron-metadata
service, because actually there is no any IPv6 support, see [0] for any
details.

[0] https://review.openstack.org/#/c/315604/

Change-Id: I4c69d71994179f8ded91fba141659cc86d279b62
Signed-off-by: Valentina Krasnobaeva <valentina.krasnobaeva@6wind.com>

diff --git a/docs/submodules/integration/test b/docs/submodules/integration/test
index 30d2a8d06faf585b34f2c768ac31551687227907..1664e7597bb2ce5ca11ff64f6e643cb62f507a2c 160000 (submodule)
--- a/docs/submodules/integration/test
+++ b/docs/submodules/integration/test
@@ -1 +1 @@
-Subproject commit 30d2a8d06faf585b34f2c768ac31551687227907
+Subproject commit 1664e7597bb2ce5ca11ff64f6e643cb62f507a2c