RUN_COMPUTE_INDIRECT has been found to cause intermittent hangs, so
this change replaces it with RUN_COMPUTE and a set TASK_AXIS_X.
While this task axis might be suboptimal, the performance cost is
somewhat offset by RUN_COMPUTE not being an emulated command.
Fixes: 2ffc05d8d2 ("panvk: Add support for CmdDispatchIndirect")
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33841>