panfrost: Update copyright year for new counter definitions

The source files generated from counter XML files should now contain
a copyright corresponding to the year of generation.

Signed-off-by: Lukas Zapolskas <lukas.zapolskas@arm.com>

src/panfrost/perf/pan_gen_perf.py

@@ -4,6 +4,7 @@
 import argparse
 import textwrap
 import os
+import datetime
 
 import xml.etree.ElementTree as et
 
@@ -87,12 +88,12 @@ def main():
    copyright = textwrap.dedent("""\
       /* Autogenerated file, DO NOT EDIT manually! generated by {}
        *
-       * Copyright © 2021 Arm Limited
-       * Copyright © 2021 Collabora Ltd.
+       * Copyright © {year} Arm Limited
+       * Copyright © {year} Collabora Ltd.
        * SPDX-License-Identifier: MIT
        */
 
-      """).format(os.path.basename(__file__))
+      """).format(os.path.basename(__file__), year=datetime.datetime.now().year)
 
    h.write(copyright)
    h.write(textwrap.dedent("""\