Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to 3ed40f1a7fe37e61e92ee9d47c157805ce3ea7a5
  - Merge "Revert "Promise Request-id header: Check MDC value if no header""
  - Revert "Promise Request-id header: Check MDC value if no header"

    This reverts commit 1420dc49

    Issue-ID: VID-647
    Change-Id: Ib33ae33ba0d1482eddf4d85fcc15f9bc6569e00c
    Signed-off-by: Ittay Stern <ittay.stern@att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index cf4b410..3ed40f1 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit cf4b410cfd7a561649e105d62d1bad6d05dc2acd
+Subproject commit 3ed40f1a7fe37e61e92ee9d47c157805ce3ea7a5