[gpu/NVDRV] Finalize, improve AllocObjCtx
[jit] Reduce initial code cache size to 32MiB across all platforms
In this commit as well, no problems detected on the PC site.
[jit] Increase x86_64 default code size to full 2GiB hugepage
Tested this commit on 4 games. One 32-bit, three 64-bit games. No regressions.
[gpu/NVDRV] Unstub SetErrorNotifier and add PostErrorNotification
[gpu/NVDRV] Finalize AllocObjCtx