Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Fixed a few Py 2.7 -> 3.x issues."
  - Fixed a few Py 2.7 -> 3.x issues.

    JIRA: SNAPS-286

    Change-Id: Ib4976529168655df0ed906276b503b70a8459f21
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 632b726..6c60d13 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 632b72619852cc9f321099a524c3478c0b2afa08
+Subproject commit 6c60d13052ca1196333782edd4bf118ba25e0bda