Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to 50f08102564af0938a66071af6c1d1fbf6667943
  - Restore the reference instance of Upgrade's test

    Restored file upgrade_vfmodule_e2e__service_instance, and
    adjust upgrade_vfmodule_e2e__fe_input_cypress accordingly.

    Also hardening MsoRequestBuilderTest to check for every
    true/false/null Boolean option.

    Issue-ID: VID-603

    Change-Id: Ib82afcecaa57cb06896f7175d48aa8d6a314fdfa
    Signed-off-by: Ittay Stern <ittay.stern@att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index b9d4788..50f0810 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit b9d4788fc441a516e4bdbeef54982362354944da
+Subproject commit 50f08102564af0938a66071af6c1d1fbf6667943