mesa/st: take pixelmaps in to account in drawpixels cache

Otherwise we might use cache item with different mapping.

Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12492
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33191>
2 files changed