Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Fixed bug when use_keystone parameter is False."
  - Fixed bug when use_keystone parameter is False.

    When false, the self.keystone member is None and now it is being
    used in many more places with some of the other changes during
    the Fraser release

    JIRA: SNAPS-299

    Change-Id: I752afb127287036a16f3c9b00e6feae9cab80143
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index d9d0ae7..f776a86 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit d9d0ae71f0ccdfe9bf67e90a3242e23a8adbbd88
+Subproject commit f776a8606ef1efb8697eee3c67d8ae6571c4a743