64bit libc table generator had $r10 as 4th argument (#113)

## Description/Motivation/Screenshots

Fixes `scripts/libc_function_args/tables/generator.py` which was wrong using `$r10` as 4th argument

Author: MinatoTW

scripts/libc_function_args/tables/generator.py

@@ -118,7 +118,7 @@ def generate_all_json_files() -> bool:
         # generate x86_64
         if libc_x64_funcdef_fpath in libc_funcdef_list and not generate_json_file(
             function_dict,
-            ["$rdi", "$rsi", "$rdx", "$r10", "$r8", "$r9"],
+            ["$rdi", "$rsi", "$rdx", "$rcx", "$r8", "$r9"],
             libc_x64_funcdef_fpath,
         ):
             logging.error(