Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to e1f7974f0badbd4440d5b7ea5f1b1cb2d4973818
  - Adding feature:  Replace vfmodule
    
    Issue-ID: VID-603
    Change-Id: I59068a0979d6fb733e4243c8f78921f396dc9d17
    Signed-off-by: Einat Vinouze <einat.vinouze@intl.att.com>
    Signed-off-by: Amichai Hemli <amichai.hemli@intl.att.com>
    Signed-off-by: Ittay Stern <ittay.stern@att.com>
    
diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index e25b88b..e1f7974 160000
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit e25b88b5a7a0f3bf63ca7160a441b53145484bcc
+Subproject commit e1f7974f0badbd4440d5b7ea5f1b1cb2d4973818