meson: Move all code generation scripts to utils/codegen/

We have multiple code generation scripts in utils/, mixed with other
miscellaneous utilities, as well as a larger code base based on mojom in
utils/ipc/. To make code sharing easier between the generator scripts,
without creating a mess in the utils/ directory, move all the code
generation code to utils/codegen/.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>

utils/tracepoints/gen-tp-header.py

@@ -1,39 +0,0 @@
-#!/usr/bin/env python3
-# SPDX-License-Identifier: GPL-2.0-or-later
-# Copyright (C) 2020, Google Inc.
-#
-# Author: Paul Elder <paul.elder@ideasonboard.com>
-#
-# Generate header file to contain lttng tracepoints
-
-import datetime
-import jinja2
-import pathlib
-import os
-import sys
-
-def main(argv):
-    if len(argv) < 4:
-        print(f'Usage: {argv[0]} include_build_dir output template tp_files...')
-        return 1
-
-    output = argv[2]
-    template = argv[3]
-
-    year = datetime.datetime.now().year
-    path = pathlib.Path(output).absolute().relative_to(argv[1])
-
-    source = ''
-    for fname in argv[4:]:
-        source += open(fname, 'r', encoding='utf-8').read() + '\n\n'
-
-    template = jinja2.Template(open(template, 'r', encoding='utf-8').read())
-    string = template.render(year=year, path=path, source=source)
-
-    f = open(output, 'w', encoding='utf-8').write(string)
-
-    return 0
-
-
-if __name__ == '__main__':
-    sys.exit(main(sys.argv))