vulkan/include: import the video codec headers.

I'd like to allow mesa builds with beta headers enabled,
this requires importing these.

v2: add video headers to khronos update

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13685>

include/vk_video/vulkan_video_codecs_common.h

@@ -0,0 +1,21 @@
+/*
+** Copyright (c) 2019-2021 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0
+*/
+
+#ifndef VULKAN_VIDEO_CODEC_COMMON_H_
+#define VULKAN_VIDEO_CODEC_COMMON_H_ 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define VK_MAKE_VIDEO_STD_VERSION(major, minor, patch) \
+    ((((uint32_t)(major)) << 22) | (((uint32_t)(minor)) << 12) | ((uint32_t)(patch)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // VULKAN_VIDEO_CODEC_COMMON_H_