fs: fstat shouldn't follow the symbol link

since the decision is already done at open time(from path to fd)

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Idc1df3c1d7fe60927b0643173f3f40895aaffd4c

fs/vfs/fs_fstat.c

@@ -200,7 +200,7 @@ int file_fstat(FAR struct file *filep, FAR struct stat *buf)
         {
           /* The inode is part of the root pseudo file system. */
 
-          ret = inode_stat(inode, buf, 1);
+          ret = inode_stat(inode, buf, 0);
         }
     }