Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Deleting files created when obtaining keypair settings from heat.

    When Heat creates a keypair and SNAPS-OO attempts to generate a
    KeypairSettings object, the private key is getting stored into
    a file that was not getting cleaned up in some of the tests.

    JIRA: SNAPS-177

    Change-Id: I50759a74efbd1d0df4de0780da43b9e56432d28c
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index b59094a..d41992f 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit b59094ae4f53e0da4e4a5fb7c2aece3647d23b8d
+Subproject commit d41992fe773fc88d8aa32723c93df8ba2e1c75b7