Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Release file for snaps hunter"
  - Release file for snaps hunter

    Change-Id: Ibc51e9a9e596598ff53d93651629536246df18b3
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 2fed59b..7486614 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 2fed59b78a0ccf62364a6af8722c194a0160375f
+Subproject commit 7486614fbc3e92820c8627bdb6bd7eb252b2ab49