Update git submodules

* Update docs/submodules/modeling/modelspec.git from branch 'master'
  to 22c62c7e71dfe90b18c27d37b3a7943e9b9186f6
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    
    Change-Id: Ifbeb2996dad266c0a0c256ed6d2f46e730449b47
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
diff --git a/docs/submodules/modeling/modelspec.git b/docs/submodules/modeling/modelspec.git
index 6470e16..22c62c7 160000
--- a/docs/submodules/modeling/modelspec.git
+++ b/docs/submodules/modeling/modelspec.git
@@ -1 +1 @@
-Subproject commit 6470e16f627a9d95a3408dcf5b4672fec07e0805
+Subproject commit 22c62c7e71dfe90b18c27d37b3a7943e9b9186f6