Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Avoid checking Keystone v3 domains when using API v2.0

    Introducing a version check to avoid checking keystone domains,
    which are an auth API v3 feature, when only auth API v2.0 is
    being used.

    Change-Id: I220c6637e5f65124e5dbe7d5246490c3986b7a66
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index b4ddabd..0cb9752 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit b4ddabd5af178f0e8bc33fb694facb20fea354ea
+Subproject commit 0cb9752f2cafb4abc7a5df969becb86ce34d6aa7