Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to 5518615a9a8344079440ca646d2a62d19bfb0c52
  - Merge "Allow platform multi-selection for VNF in modern UI"
  - Allow platform multi-selection for VNF in modern UI

    Issue-ID: VID-722
    Change-Id: Id87f59fff128e277d9158b83f3908754375c8b01
    Signed-off-by: Yoav Schneiderman <yoav.schneiderman@intl.att.com>
    Signed-off-by: Einat Vinouze <einat.vinouze@intl.att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index cc75a7a..5518615 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit cc75a7a4ede9dc6aafe709594b1789dab12d3ce6
+Subproject commit 5518615a9a8344079440ca646d2a62d19bfb0c52