update shader config package for 7.3.1

LocalPackages/com.unity.render-pipelines.high-definition-config/CHANGELOG.md

 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [7.3.1] - 2020-03-11
+
+Version Updated
+The version number for this package has increased due to a version update of a related graphics package.
-## [7.2.0] - 2020-03-02
+## [7.2.0] - 2020-02-10
 
 Version Updated
 The version number for this package has increased due to a version update of a related graphics package.

LocalPackages/com.unity.render-pipelines.high-definition-config/LICENSE.md

-Render Pipeline Core copyright © 2020 Unity Technologies ApS
+com.unity.render-pipelines.high-definition-config copyright © 2020 Unity Technologies ApS
 
 Licensed under the Unity Companion License for Unity-dependent projects--see [Unity Companion License](http://www.unity3d.com/legal/licenses/Unity_Companion_License). 
 

LocalPackages/com.unity.render-pipelines.high-definition-config/package.json

 {
     "name": "com.unity.render-pipelines.high-definition-config",
     "description": "Configuration files for the High Definition Render Pipeline.",
-    "version": "8.0.0",
-    "unity": "2020.1",
-    "unityRelease": "0a15",
+    "version": "7.3.1",
+    "unity": "2019.3",
+    "unityRelease": "2f1",
-        "com.unity.render-pipelines.core": "7.2.0"
+        "com.unity.render-pipelines.core": "7.3.1"
     }
 }