intel/perf: add reorder script

intel/perf: add reorder script

When transitioning the oa-*.xml files from Gputop to IGT, we also had
to deal with a python2->3 transition. Unfortunately the implementation
dependent hash table ordering leaked into the XML files and so things
changed quite a bit.

This script reorders things from the old to the new order in the
existing files.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6518>