mesa: increase MaxServerWaitTimeout

mesa: increase MaxServerWaitTimeout

The current value was introduced in commit a27180d0d8666, which claims
that it represents ~1.11 years. However, it is interpreted in nanoseconds,
so it actually only represents ~9.8 hours. That seems a bit short.

Use the largest value consistent with both int32 and int64. It
corresponds to ~292 years in nanoseconds.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>