Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to 7bc81973c823789debc000858f7777d120709ac4
  - Filter owning-entities from /category_parameter by permissions

    Implemented in CategoryParameterServiceWithRoles and injected
    to MaintenanceController, but still reachable because
    shouldTreatPermissions() is "false".

    Issue-ID: VID-758

    Change-Id: I716202ca944af9b0de9c151d75d50b5df41a8171
    Signed-off-by: Ittay Stern <ittay.stern@att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index 45b0eb7..7bc8197 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit 45b0eb72cde7a950579e74c62bee198e0a36acf7
+Subproject commit 7bc81973c823789debc000858f7777d120709ac4