dzn: Flip on enhanced barrier code paths based on D3D capability

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20324>

src/microsoft/vulkan/dzn_cmd_buffer.c

@@ -652,6 +652,8 @@ dzn_cmd_buffer_create(const VkCommandBufferAllocateInfo *info,
    cmdbuf->type = type;
    cmdbuf->valid_sync = cmd_buffer_valid_sync[type];
    cmdbuf->valid_access = cmd_buffer_valid_access[type];
+   cmdbuf->enhanced_barriers = pdev->options12.EnhancedBarriersSupported;
+
 out:
    if (result != VK_SUCCESS)
       dzn_cmd_buffer_destroy(&cmdbuf->vk);

src/microsoft/vulkan/dzn_device.c

@@ -2178,6 +2178,11 @@ dzn_device_create(struct dzn_physical_device *pdev,
                                              &vk_common_device_entrypoints,
                                              false);
 
+   /* Override entrypoints with alternatives based on supported features. */
+   if (pdev->options12.EnhancedBarriersSupported) {
+      device->cmd_dispatch.CmdPipelineBarrier2 = dzn_CmdPipelineBarrier2_enhanced;
+   }
+
    VkResult result =
       vk_device_init(&device->vk, &pdev->vk, &dispatch_table, pCreateInfo, pAllocator);
    if (result != VK_SUCCESS) {