Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to ad28fa7ab9eda390ec0d816acf9eb17b145f9cef
  - Bugfix: Revert soft-delete to restore VF-module deletion
    
    Issue-ID: VID-503
    
    Change-Id: I2c815288140116d0c5bd4630f2688132a033a16c
    Signed-off-by: Ittay Stern <ittay.stern@att.com>
    
diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index 0d37e2c..ad28fa7 160000
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit 0d37e2c3db490fac0b7b7e53612dbf9450bb2841
+Subproject commit ad28fa7ab9eda390ec0d816acf9eb17b145f9cef