Update git submodules

* Update docs/submodules/vid.git from branch 'master'
  to aa9bee1fac0a5a5ee96a896de90645bb950b609a
  - Merge "Allow full-path to certificate and remove implicit Optional::toString"
  - Allow full-path to certificate and remove implicit Optional::toString

    1) If getAAITruststoreFilename or getAAIKeystoreFilename has a file
       separator -- don't append certFilePath to filename.

    2) getKeystorePath() is issuing Optional::orElse, as the code
       `+ getAAIKeystoreFilename()` is implicitly calling
       `getAAIKeystoreFilename().toString()` which yields a default toString
       e.g. "Optional[configValue]".

    Issue-ID: VID-229

    Change-Id: I9c135cc3dfd72cdc203b59d78162a568a6dbd688
    Signed-off-by: Ittay Stern <ittay.stern@att.com>

diff --git a/docs/submodules/vid.git b/docs/submodules/vid.git
index b491faf..aa9bee1 160000 (submodule)
--- a/docs/submodules/vid.git
+++ b/docs/submodules/vid.git
@@ -1 +1 @@
-Subproject commit b491faf8b57779addeb41def6be4c8977d0d5acd
+Subproject commit aa9bee1fac0a5a5ee96a896de90645bb950b609a