[vk, rasterizer] TiledCacheBarrier starter

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -810,7 +810,9 @@ void RasterizerVulkan::FragmentBarrier() {
 }
 
 void RasterizerVulkan::TiledCacheBarrier() {
-    // TODO: Implementing tiled barriers requires rewriting a good chunk of the Vulkan backend
+    // Maxwell expects color writes to become visible to subsequent draws; reuse the
+    // render-pass teardown path so all attachments receive the usual image barriers.
+    scheduler.RequestOutsideRenderPassOperationContext();
 }
 
 void RasterizerVulkan::FlushCommands() {