nouveau/nvc0: increase overallocation on shader bo to 4096
What does this MR do and why?
nouveau/nvc0: increase overallocation on shader bo to 4096
I've been seeing a bunch of read page faults at the end of the
shader allocation, nvk uses a full page at the end to overallocate
so align with that and see if it goes away.
Cc: mesa-stable