[compiler-rt] [rtsan][Apple] Add interceptor for _os_nospin_lock_lock (PR #131034)

[Dan Liew via llvm-commits]

delcypher wrote:

@davidtrevelyan @thetruestblue Doing this fixed the build for me using the internal SDK.

```
diff --git a/compiler-rt/lib/rtsan/rtsan_interceptors_posix.cpp b/compiler-rt/lib/rtsan/rtsan_interceptors_posix.cpp
index 5bbefa3ce43f..71e47f97f8c0 100644
--- a/compiler-rt/lib/rtsan/rtsan_interceptors_posix.cpp
+++ b/compiler-rt/lib/rtsan/rtsan_interceptors_posix.cpp
@@ -35,7 +35,7 @@ void OSSpinLockLock(volatile OSSpinLock *__lock);
 // therefore not available in any headers. As a workaround, we forward declare
 // it here, which is enough to facilitate interception of _os_nospin_lock_lock.
 struct _os_nospin_lock_s;
-using _os_nospin_lock_t = _os_nospin_lock_s *;
+using _os_nospin_lock_t = volatile OSSpinLock *;
 }
 #endif // TARGET_OS_MAC
```

https://github.com/llvm/llvm-project/pull/131034