Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Added method to OpenStackHeatStack to return OpenStackKeypair objects.

    Continuation of the story SNAPS-153 for adding creator/state machine
    instances for OpenStack objects deployed via Heat.

    JIRA: SNAPS-175

    Change-Id: I7196279086b1935b4ec4a01483d46921cc567b15
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 0dfca49..85eb362 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 0dfca494ef7c2778babfac48d9b701953860b54f
+Subproject commit 85eb362579efbbc57e2851b2da2fd9599461f1ae