Correct stringId of _DebugFont

ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDStringConstants.cs

 
         public static readonly int _ViewTilesFlags = Shader.PropertyToID("_ViewTilesFlags");
         public static readonly int _MousePixelCoord = Shader.PropertyToID("_MousePixelCoord");
-        public static readonly int _DebugFont = Shader.PropertyToID("_DebugMipMapMode");
+        public static readonly int _DebugFont = Shader.PropertyToID("_DebugFont");
 
         public static readonly int _DebugViewMaterial = Shader.PropertyToID("_DebugViewMaterial");
         public static readonly int _DebugLightingMode = Shader.PropertyToID("_DebugLightingMode");