Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Added support for using '~' for SSH key location.

    While testing changes, fixed problems found with querying for
    floating IPs which also required adding network data to the
    VMInst domain object.

    JIRA: SNAPS-85

    Change-Id: I0ecf3a6885ce84fe14c4a6db09269c56dc0ad9fc
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 815a212..5616caf 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 815a21216c6df1a33eff7a5521ee0b08f4696822
+Subproject commit 5616cafabcc5f8ab75ee6fcaefa87e3fbd126ce9