Update git submodules

* Update docs/submodules/modeling/modelspec.git from branch 'master'
  to d2b24c5c248a052f2a05e640cfa9d5429dc994e8
  - Merge "Updates to Common"
  - Updates to Common

    Updated VES to 7.1, including 3gpp domain events as well as slight
    common datatypes updates.   Also updated draft material on root class
    model.

    Issue-ID: MODELING-104

    Change-Id: I8c7b8c9555296dc9b30caadac9a56ce6fba15567
    Signed-off-by: Kevin Scaggs <ks0567@att.com>

diff --git a/docs/submodules/modeling/modelspec.git b/docs/submodules/modeling/modelspec.git
index 7861f89..d2b24c5 160000 (submodule)
--- a/docs/submodules/modeling/modelspec.git
+++ b/docs/submodules/modeling/modelspec.git
@@ -1 +1 @@
-Subproject commit 7861f8912e291167c6782651a73ba1d9566d5c73
+Subproject commit d2b24c5c248a052f2a05e640cfa9d5429dc994e8