Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to dca4dd56b599c7ae44f8f256bd8ca8e8e05895f2
  - OperationalEnvironment improvements

    -added new unit test to AaiControllerTest
    -OperationalEnvironment and List are now immutable
    -builder improvements
    -removed redundant test

    Issue-ID: VID-706
    Signed-off-by: Michal Kabaj <michal.kabaj@nokia.com>
    Change-Id: I2cf0d0b124458b9306637614b3d26c85c780ca4d
    Signed-off-by: Michal Kabaj <michal.kabaj@nokia.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index 60bc281..dca4dd5 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit 60bc28100aca6007ff7818cbe165472801eecf53
+Subproject commit dca4dd56b599c7ae44f8f256bd8ca8e8e05895f2