[PATCH v2 0/2] MR2158: ntdll: Fix compile error on ARM64 macOS.

[Brendan Shanks (＠bshanks)]

Fix the error:
```
<inline asm>:305:2: error: conditional branch requires assembler-local label. '.L__wine_syscall_dispatcher_return' is external.
        cbnz w16, .L__wine_syscall_dispatcher_return
```

I don't know why LLVM/clang on macOS requires a local label for conditional branches.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54256

--
  v2: ntdll: Use __ASM_LOCAL_LABEL in syscall dispatchers.
      include: Add __ASM_LOCAL_LABEL macro.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2158