Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Fixes additional legacy problems found when reviewing patch 58483"
  - Fixes additional legacy problems found when reviewing patch 58483

    Second revision removes an unnecessary check on self.ext_net_name.

    Change-Id: I0611d0130824fb0c2fa147d3fa503b2826a61ed5
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index a8386de..fa3e37b 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit a8386de2f63cba3adf0042c1a14f0342fe333551
+Subproject commit fa3e37b1a906e4dad015566e0798570f3a188949