dzn: Advertise KHR_shader_draw_parameters

We already pass those parameters to shaders, so let's advertise the
feature.

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15912>

src/microsoft/vulkan/dzn_device.c

@@ -78,6 +78,7 @@ dzn_physical_device_get_extensions(struct dzn_physical_device *pdev)
 {
    pdev->vk.supported_extensions = (struct vk_device_extension_table) {
       .KHR_descriptor_update_template        = true,
+      .KHR_shader_draw_parameters            = true,
 #ifdef DZN_USE_WSI_PLATFORM
       .KHR_swapchain                         = true,
 #endif
@@ -1080,7 +1081,7 @@ dzn_GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
       .variablePointers                   = true,
       .protectedMemory                    = false,
       .samplerYcbcrConversion             = false,
-      .shaderDrawParameters               = false,
+      .shaderDrawParameters               = true,
    };
 
    const VkPhysicalDeviceVulkan12Features core_1_2 = {