Bump nemu ref in ready-to-run

NEMU commit: 513786c4c597dd628c6126144937372d6f7fc92e
NEMU configs:
- riscv64-xs-ref_defconfig
- riscv64-dual-xs-ref_defconfig
- riscv64-xs-ref-debug_defconfig
- riscv64-dual-xs-ref-debug_defconfig

Including: 513786c4 ci: run PR-Agent review on self-hosted runner (#1192) f7b67482 fix(riscv64): initialize mstatus FS to Off (#1190) 39d120ce perf(simpoint): accelerate basic-block profiling (#1178) 4fe3c141 fix(matrix): handle bf16 fp32 mmacc (#1189) c00b6dd1 fix(memory): honor configured base in golden memory (#1187) 0d4a31d5 feat(monitor): support ELF image loading (#1186) be4df824 refactor(memory): remove sparse memory model (#1185) e91df35c ci: request Copilot reviews for pull requests (#1182) e139164f fix(mmu): remove misplaced PTW failure logs (#1183)

XiangShan ready-to-run binaries

This repo includes some prebuilt workloads and difftest reference libaries. Please refer to XiangShan-doc to learn how to use them.

This repo may be abandoned in feature, as we are trying to provide prebuilt binaries through Github release.

Prebuilt difftest reference libaries

riscv64-nemu-interpreter-so
- NEMU difftest reference library
- Built via the ci of OpenXiangShan/NEMU.
riscv64-nemu-interpreter-dual-so
- NEMU difftest reference library with dual core difftest support.
riscv64-spike-so
- SPIKE difftest reference library
- Built via the ci of OpenXiangShan/riscv-isa-sim.

Prebuilt workloads

linux.bin
- Simple Linux boot-up test.
- OpenSBI v1.4 + Linux 6.1.83 + print Hello
- ~~Built accodring to XiangShan-doc~~
  - The document has not updated for OpenSBI yet.
microbench.bin
- Baremental test-scale microbench workload
- Built via the ci of OpenXiangShan/nexus-am, application is apps/microbench
coremark-2-iteration.bin
- Baremental 2-iteration Coremark workload
- Built via the ci of OpenXiangShan/nexus-am, application is apps/coremark
copy_and_run.bin
- Copy 1-iteration coremark from flash to memory, and run it.
- Built via the ci of OpenXiangShan/nexus-am, application is apps/loader
flash_recursion_test.bin