Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Added post processing task after application of an Ansible playbook.

    The only task currently supported is reboot.

    Change-Id: I9089c593af30db071508a47667381238fe91e44e
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 97cee57..1634f6e 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 97cee572f017696415b212024fc28c85b892b0cd
+Subproject commit 1634f6ed27e33c52334d97c1c85f96eb6e651426