vulkan: Add a vk_video_session_finish() helper

It's always better if init/finish come in pairs.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Hyunjun Ko <zzoon@igalia.com>
Reviewed-by: David Rosca <david.rosca@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36646>

src/vulkan/runtime/vk_video.c

@@ -119,6 +119,12 @@ vk_video_session_init(struct vk_device *device,
    return VK_SUCCESS;
 }
 
+void
+vk_video_session_finish(struct vk_video_session *vid)
+{
+   vk_object_base_finish(&vid->base);
+}
+
 static void
 vk_video_deep_copy_h264_sps(struct vk_video_h264_sps *dst,
                             const StdVideoH264SequenceParameterSet *src)

src/vulkan/runtime/vk_video.h

@@ -188,6 +188,8 @@ VkResult vk_video_session_init(struct vk_device *device,
                                struct vk_video_session *vid,
                                const VkVideoSessionCreateInfoKHR *create_info);
 
+void vk_video_session_finish(struct vk_video_session *vid);
+
 void *vk_video_session_parameters_create(struct vk_device *device,
                                          const VkVideoSessionParametersCreateInfoKHR *create_info,
                                          const VkAllocationCallbacks *alloc,