Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Added support for offline testing

    Expanded the image_metadata used by the tests for overriding default
    images for not only supporting 3part images but also to support offline
    testing as required by Functest.

    JIRA: SNAPS-67

    Change-Id: I6975e7b51fa879fe984af64402939c465df95184
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 6fd1af8..10c665d 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 6fd1af82cd7bf41274c4e1620006004b79628759
+Subproject commit 10c665d7c831cf198ac9e675654693860e602bf9