util: move gen_zipped_file into generic util and rename to gen_zipped_xml_file

Make the filename more descriptive and since the file is used by
multiple drivers, move it into appropriate util/ directory.

Cosmetics:
 - use SPDX license tag
 - add newline before main function

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27804>

src/broadcom/cle/meson.build

@@ -45,7 +45,7 @@ endforeach
 
 v3d_xml_h = custom_target(
   'v3d_xml.h',
-  input : ['../../intel/genxml/gen_zipped_file.py', v3d_xml_files],
+  input : ['../../util/gen_zipped_xml_file.py', v3d_xml_files],
   output : 'v3d_xml.h',
   command : [prog_python, '@INPUT@'],
   capture : true,

src/intel/genxml/meson.build

@@ -45,7 +45,7 @@ endforeach
 
 genX_xml_h = custom_target(
   'genX_xml.h',
-  input : ['gen_zipped_file.py', gen_xml_files],
+  input : ['../../util/gen_zipped_xml_file.py', gen_xml_files],
   output : 'genX_xml.h',
   command : [prog_python, '@INPUT@'],
   capture : true,

src/util/gen_zipped_xml_file.py

@@ -1,31 +1,13 @@
 #encoding=utf-8
 #
 # Copyright © 2017 Intel Corporation
-#
-# 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 (including the next
-# paragraph) 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.
-#
+# SPDX-License-Identifier: MIT
 
 import sys
 import zlib
 import xml.etree.ElementTree as et
 
+
 def main():
     if len(sys.argv) < 2:
         print("No input xml file specified")