Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Added a check for cloud-init completion before final ssh client check."
  - Added a check for cloud-init completion before final ssh client check.

    Change-Id: I040da15623a7da03d1e3805cfa113b1c40916d11
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index e3fd866..8b19c8e 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit e3fd866cceaa621617f5b9efc8dd23c19d56ab11
+Subproject commit 8b19c8e6f97aa3bd83f90884b9590cc555a494ff