radeonsi: dump shader stats when hitting the live cache

radeonsi: dump shader stats when hitting the live cache

With the introduction of the live shader cache, when a shader is
fetched from the cache no stats are printed for shaderdb.
So in a sequence like this: vs1, fs1, vs1, fs2, shaderdb may see
3 or 4 lines, depending on the threads being used.
If one run produces 3 lines while the other produces 4 lines, it
would compare vs1 stats with fs2 stats.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4355>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4355>