tc: rework rp info incrementing

the logic for incrementing this in recorder/executor threads was far
too complex, which meant there were unlimited bugs which could trigger
in subtle corner cases

rework this to be simpler to ensure that the executor info always matches
up with the recorder info

Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35477>
2 files changed