[loong64] Adjust the disassembler instruction format

Change-Id: I1148508825b7bdff3dae0634aed5318a605ba4da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3153355Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#76762}