Merge pull request #4483 from no1wudi/main

fix: use nlink_t type for st_nlink in struct stat definition for NuttX

Author: tgross35

src/unix/nuttx/mod.rs

@@ -32,7 +32,7 @@ s! {
         pub st_dev: dev_t,
         pub st_ino: ino_t,
         pub st_mode: mode_t,
-        pub st_nlink: u64,
+        pub st_nlink: nlink_t,
         pub st_uid: u32,
         pub st_gid: u32,
         pub st_rdev: dev_t,