Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Remove TODOs from create_router.py"
  - Remove TODOs from create_router.py

    Determined not to support the optional router attributes:
    'enable_snat' & 'external_fixed_ips' at this time.

    JIRA: SNAPS-150

    Change-Id: I68445fb055668f4cb5f2a2ff80499da0f4160043
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 84c4e79..b003647 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 84c4e791b6ea4e6d488acf29491ef8c901011aa3
+Subproject commit b003647b70545008405294c4268e62fa87c18574