HDRenderPipeline: Fix shadow mask enabling in frame settings

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/HDRenderPipelineInspector.Styles.cs

             public readonly GUIContent useDepthPrepassWithDeferredRendering = new GUIContent("Use Depth Prepass with Deferred rendering");
             public readonly GUIContent renderAlphaTestOnlyInDeferredPrepass = new GUIContent("Alpha Test Only");
             public readonly GUIContent enableAsyncCompute = new GUIContent("Enable Async Compute");
+            public readonly GUIContent enableShadowMask = new GUIContent("Enable Shadow Mask");
 
             // LightLoop Settings
             public readonly GUIContent lightLoopSettings = new GUIContent("Light Loop Settings");

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/HDRenderPipelineInspector.cs

         SerializedProperty m_RenderingUseDepthPrepass;
         SerializedProperty m_RenderingUseDepthPrepassAlphaTestOnly;
         SerializedProperty m_enableAsyncCompute;
+        SerializedProperty m_enableShadowMask;
 
         // Subsurface Scattering Settings
         SerializedProperty m_SubsurfaceScatteringSettings;
             m_RenderingUseForwardOnly = properties.Find(x => x.serializedFrameSettings.enableForwardRenderingOnly);
             m_RenderingUseDepthPrepass = properties.Find(x => x.serializedFrameSettings.enableDepthPrepassWithDeferredRendering);
             m_RenderingUseDepthPrepassAlphaTestOnly = properties.Find(x => x.serializedFrameSettings.enableAlphaTestOnlyInDeferredPrepass);
+            m_enableShadowMask = properties.Find(x => x.serializedFrameSettings.enableShadowMask);
 
             // Subsurface Scattering Settings
             m_SubsurfaceScatteringSettings = properties.Find(x => x.sssSettings);
             }
 
             EditorGUILayout.PropertyField(m_enableAsyncCompute, s_Styles.enableAsyncCompute);
+            EditorGUILayout.PropertyField(m_enableShadowMask, s_Styles.enableShadowMask);
 
             EditorGUI.indentLevel--;
         }

ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs

 
         void CreateDepthStencilBuffer(HDCamera hdCamera)
         {
-            var camera = hdCamera.camera;
-
             if (m_CameraDepthStencilBuffer != null)
                 m_CameraDepthStencilBuffer.Release();
 

ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipeline/FrameSettings.cs

 
             aggregate.enableMSAA = frameSettings.enableMSAA && renderPipelineSettings.supportMSAA;
 
-            aggregate.enableShadowMask = renderPipelineSettings.supportShadowMask;
+            aggregate.enableShadowMask = frameSettings.enableShadowMask && renderPipelineSettings.supportShadowMask;
 
             aggregate.lightLoopSettings = LightLoopSettings.InitializeLightLoopSettings(camera, aggregate, renderPipelineSettings, frameSettings);