docs: move license(s) to licenses directory

Cc: mesa-stable
Signed-off-by: David Heidelberg <david@ixit.cz>
(cherry picked from commit c22d640fe9)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33113>

.pick_status.json

@@ -2014,7 +2014,7 @@
         "description": "docs: move license(s) to licenses directory",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": null,
         "notes": null

docs/license.rst

@@ -29,32 +29,12 @@ Mesa device drivers are copyrighted by their authors. See below for a
 list of Mesa's main components and the license for each.
 
 The core Mesa library is licensed according to the terms of the MIT
-license. This allows integration with the XFree86, X.Org and DRI
+license.
-projects.
 
-The default Mesa license is as follows:
+Most of the Mesa code is licensed under MIT license,
+but individual files may have their own licenses.
 
-::
+You may find all the licenses used within this project in the licenses/ directory.
-
-   Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
-
-   Permission is hereby granted, free of charge, to any person obtaining a
-   copy of this software and associated documentation files (the "Software"),
-   to deal in the Software without restriction, including without limitation
-   the rights to use, copy, modify, merge, publish, distribute, sublicense,
-   and/or sell copies of the Software, and to permit persons to whom the
-   Software is furnished to do so, subject to the following conditions:
-
-   The above copyright notice and this permission notice shall be included
-   in all copies or substantial portions of the Software.
-
-   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-   SOFTWARE.
 
 Attention, Contributors
 -----------------------

licenses/MIT

@@ -0,0 +1,30 @@
+Valid-License-Identifier: MIT
+SPDX-URL: https://spdx.org/licenses/MIT.html
+Usage-Guide:
+  To use the MIT License put the following SPDX tag/value pair into a
+  comment according to the placement guidelines in the licensing rules
+  documentation:
+    SPDX-License-Identifier: MIT
+License-Text:
+
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.